210021012122022 has 48 divisors (see below), whose sum is σ = 457005504384000. Its totient is φ = 69706060780272.

The previous prime is 210021012121937. The next prime is 210021012122063. The reversal of 210021012122022 is 220221210120012.

It is a happy number.

210021012122022 is a `hidden beast` number, since 210 + 0 + 210 + 1 + 2 + 1 + 220 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 210021012121986 and 210021012122004.

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, 20400822 + ... + 28917737.

It is an arithmetic number, because the mean of its divisors is an integer number (9520948008000).

Almost surely, 2^{210021012122022} is an apocalyptic number.

210021012122022 is an abundant number, since it is smaller than the sum of its proper divisors (246984492261978).

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

210021012122022 is a wasteful number, since it uses less digits than its factorization.

210021012122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49319585 (or 49319582 counting only the distinct ones).

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

Adding to 210021012122022 its reverse (220221210120012), we get a palindrome (430242222242034).

The spelling of 210021012122022 in words is "two hundred ten trillion, twenty-one billion, twelve million, one hundred twenty-two thousand, twenty-two".