121210021112212 has 12 divisors (see below), whose sum is σ = 217050502922176. Its totient is φ = 59195591705880.

The previous prime is 121210021112203. The next prime is 121210021112221. The reversal of 121210021112212 is 212211120012121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121210021112203) and next prime (121210021112221).

It is a self number, because there is not a number n which added to its sum of digits gives 121210021112212.

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, 352354712364 + ... + 352354712707.

Almost surely, 2^{121210021112212} is an apocalyptic number.

It is an amenable number.

121210021112212 is a deficient number, since it is larger than the sum of its proper divisors (95840481809964).

121210021112212 is a wasteful number, since it uses less digits than its factorization.

121210021112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704709425118 (or 704709425116 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121210021112212 its reverse (212211120012121), we get a palindrome (333421141124333).

The spelling of 121210021112212 in words is "one hundred twenty-one trillion, two hundred ten billion, twenty-one million, one hundred twelve thousand, two hundred twelve".