202200220021212 has 72 divisors (see below), whose sum is σ = 590697272037600. Its totient is φ = 57122373547008.

The previous prime is 202200220021169. The next prime is 202200220021213. The reversal of 202200220021212 is 212120022002202.

202200220021212 is a `hidden beast` number, since 2 + 0 + 220 + 0 + 220 + 0 + 212 + 12 = 666.

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 (202200220021213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4507740637 + ... + 4507785492.

It is an arithmetic number, because the mean of its divisors is an integer number (8204128778300).

Almost surely, 2^{202200220021212} is an apocalyptic number.

It is an amenable number.

202200220021212 is an abundant number, since it is smaller than the sum of its proper divisors (388497052016388).

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

202200220021212 is a wasteful number, since it uses less digits than its factorization.

202200220021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9015526235 (or 9015526230 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 202200220021212 its reverse (212120022002202), we get a palindrome (414320242023414).

The spelling of 202200220021212 in words is "two hundred two trillion, two hundred billion, two hundred twenty million, twenty-one thousand, two hundred twelve".