The single was released in three versions: the Limited Editions A and B and the Regular Edition. The limited editions came with a DVD featuring a music video, but contained only two different songs on the CD in comparison to three on the regular CD-only edition.
The title track praises the nobility of labor. The lyrics repeat "Hatarakō, hatarakō"(働こう?, "Let's work!"). The lyrics were written by Kenji Otsuki, the music and arrangement were by Ian Parton from the UK band The Go! Team.
The music video for the song features the five group members working in an office in so-called "energy-saving suits" (省エネスーツ?) and on a construction site in workwear. The "energy-saving suits" are half-sleeve tropical salaryman suits, worn with short-sleeved open-necked shirts. This kind of suit was heavily promoted by the Japanese government in 1970s as a mean to save energy on air conditioning at the time of the oil crisis.
The promotional campaign for the single included a competition titled "Momoclo Painting Contest". The group announced that it needed a different promotional poster for each of 47 prefectures and invited people to submit their works.
The title track "Rodo Sanka" was premiered live on the rooftop of the From Chūbū building in Tachikawa, western Tokyo. The group wore "energy-saving suits". The concert was held on November 3 and included a total of 13 songs plus 3 for an encore.
The CD single debuted in the 4th place of the Oricon Weekly Singles Chart. The limited edition B was the highest selling of the three in that first week of sales. In 2012, fans voted "Santa-san" to number one on the Momoiro Clover Z Request Countdown, aired on Space Shower TV on August 31, 2012.