202122011020 has 48 divisors (see below), whose sum is σ = 473078158560. Its totient is φ = 72088095744.

The previous prime is 202122011017. The next prime is 202122011041. The reversal of 202122011020 is 20110221202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15637659 + ... + 15650578.

It is an arithmetic number, because the mean of its divisors is an integer number (9855794970).

Almost surely, 2^202122011020 is an apocalyptic number.

202122011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122011020 is an abundant number, since it is smaller than the sum of its proper divisors (270956147540).

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

202122011020 is a wasteful number, since it uses less digits than its factorization.

202122011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31288282 (or 31288280 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202122011020 its reverse (20110221202), we get a palindrome (222232232222).

The spelling of 202122011020 in words is "two hundred two billion, one hundred twenty-two million, eleven thousand, twenty".