210122020221012 has 72 divisors (see below), whose sum is σ = 542347745086056. Its totient is φ = 68576969585664.

The previous prime is 210122020220969. The next prime is 210122020221023.

It is a happy number.

210122020221012 is a `hidden beast` number, since 21 + 0 + 1 + 220 + 202 + 210 + 12 = 666.

210122020221012 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 86790911674896 + 123331108546116 = 9316164^2 + 11105454^2 .

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 23 ways as a sum of consecutive naturals, for example, 291446923 + ... + 292166994.

Almost surely, 2^{210122020221012} is an apocalyptic number.

It is an amenable number.

210122020221012 is an abundant number, since it is smaller than the sum of its proper divisors (332225724865044).

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

210122020221012 is a wasteful number, since it uses less digits than its factorization.

210122020221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583614137 (or 583614132 counting only the distinct ones).

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

The spelling of 210122020221012 in words is "two hundred ten trillion, one hundred twenty-two billion, twenty million, two hundred twenty-one thousand, twelve".