202110120021212 has 36 divisors (see below), whose sum is σ = 383929110840240. Its totient is φ = 93053521372032.

The previous prime is 202110120021079. The next prime is 202110120021263. The reversal of 202110120021212 is 212120021011202.

It is a super-2 number, since 2×202110120021212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365224088 + ... + 365777055.

It is an arithmetic number, because the mean of its divisors is an integer number (10664697523340).

Almost surely, 2^{202110120021212} is an apocalyptic number.

It is an amenable number.

202110120021212 is a deficient number, since it is larger than the sum of its proper divisors (181818990819028).

202110120021212 is a wasteful number, since it uses less digits than its factorization.

202110120021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731001582 (or 731001567 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202110120021212 its reverse (212120021011202), we get a palindrome (414230141032414).

The spelling of 202110120021212 in words is "two hundred two trillion, one hundred ten billion, one hundred twenty million, twenty-one thousand, two hundred twelve".