202110022201212 has 36 divisors (see below), whose sum is σ = 512052979598160. Its totient is φ = 67216544963712.

The previous prime is 202110022201211. The next prime is 202110022201261. The reversal of 202110022201212 is 212102220011202.

It is a happy number.

202110022201212 is a `hidden beast` number, since 20 + 211 + 0 + 0 + 2 + 220 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×202110022201212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202110022201211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6394252173 + ... + 6394283780.

Almost surely, 2^{202110022201212} is an apocalyptic number.

It is an amenable number.

202110022201212 is an abundant number, since it is smaller than the sum of its proper divisors (309942957396948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202110022201212 is a wasteful number, since it uses less digits than its factorization.

202110022201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12788536402 (or 12788536397 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202110022201212 its reverse (212102220011202), we get a palindrome (414212242212414).

The spelling of 202110022201212 in words is "two hundred two trillion, one hundred ten billion, twenty-two million, two hundred one thousand, two hundred twelve".