222212101221212 has 12 divisors (see below), whose sum is σ = 411745952262960. Its totient is φ = 104570400574656.

The previous prime is 222212101221193. The next prime is 222212101221241. The reversal of 222212101221212 is 212122101212222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633912508912 + ... + 1633912509047.

It is an arithmetic number, because the mean of its divisors is an integer number (34312162688580).

Almost surely, 2^{222212101221212} is an apocalyptic number.

It is an amenable number.

222212101221212 is a deficient number, since it is larger than the sum of its proper divisors (189533851041748).

222212101221212 is a wasteful number, since it uses less digits than its factorization.

222212101221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3267825017980 (or 3267825017978 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 222212101221212 its reverse (212122101212222), we get a palindrome (434334202433434).

The spelling of 222212101221212 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred one million, two hundred twenty-one thousand, two hundred twelve".