202122112212 has 48 divisors (see below), whose sum is σ = 529107895680. Its totient is φ = 66719916864.

The previous prime is 202122112201. The next prime is 202122112237. The reversal of 202122112212 is 212211221202.

It is a happy number.

202122112212 is a `hidden beast` number, since 20 + 212 + 211 + 221 + 2 = 666.

202122112212 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9073833 + ... + 9096080.

It is an arithmetic number, because the mean of its divisors is an integer number (11023081160).

Almost surely, 2^202122112212 is an apocalyptic number.

It is an amenable number.

202122112212 is an abundant number, since it is smaller than the sum of its proper divisors (326985783468).

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

202122112212 is a wasteful number, since it uses less digits than its factorization.

202122112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18170029 (or 18170021 counting only the distinct ones).

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

Adding to 202122112212 its reverse (212211221202), we get a palindrome (414333333414).

The spelling of 202122112212 in words is "two hundred two billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twelve".