202000021122 has 32 divisors (see below), whose sum is σ = 421587560448. Its totient is φ = 64402397136.

The previous prime is 202000021063. The next prime is 202000021129. The reversal of 202000021122 is 221120000202.

It is a super-2 number, since 2×202000021122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202000021098 and 202000021107.

It is not an unprimeable number, because it can be changed into a prime (202000021129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4504503 + ... + 4549125.

It is an arithmetic number, because the mean of its divisors is an integer number (13174611264).

Almost surely, 2^202000021122 is an apocalyptic number.

202000021122 is an abundant number, since it is smaller than the sum of its proper divisors (219587539326).

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

202000021122 is a wasteful number, since it uses less digits than its factorization.

202000021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77454.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202000021122 its reverse (221120000202), we get a palindrome (423120021324).

The spelling of 202000021122 in words is "two hundred two billion, twenty-one thousand, one hundred twenty-two".