202110021022122 has 24 divisors (see below), whose sum is σ = 438036588196740. Its totient is φ = 67349769676800.

The previous prime is 202110021022111. The next prime is 202110021022183. The reversal of 202110021022122 is 221220120011202.

It is a happy number.

202110021022122 is a `hidden beast` number, since 2 + 0 + 211 + 0 + 0 + 210 + 221 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 197719567115841 + 4390453906281 = 14061279^2 + 2095341^2 .

It is a super-2 number, since 2×202110021022122² (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 junction number, because it is equal to n+sod(n) for n = 202110021022095 and 202110021022104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1686382629 + ... + 1686502472.

Almost surely, 2^{202110021022122} is an apocalyptic number.

202110021022122 is an abundant number, since it is smaller than the sum of its proper divisors (235926567174618).

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

202110021022122 is a wasteful number, since it uses less digits than its factorization.

202110021022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372888438 (or 3372888435 counting only the distinct ones).

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

Adding to 202110021022122 its reverse (221220120011202), we get a palindrome (423330141033324).

The spelling of 202110021022122 in words is "two hundred two trillion, one hundred ten billion, twenty-one million, twenty-two thousand, one hundred twenty-two".