202122020000 has 60 divisors (see below), whose sum is σ = 497250536706. Its totient is φ = 80848800000.

The previous prime is 202122019963. The next prime is 202122020003. The reversal of 202122020000 is 20221202.

It can be written as a sum of positive squares in 5 ways, for example, as 14504830096 + 187617189904 = 120436^2 + 433148^2 .

It is not an unprimeable number, because it can be changed into a prime (202122020003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5033051 + ... + 5073050.

Almost surely, 2^202122020000 is an apocalyptic number.

202122020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122020000 is an abundant number, since it is smaller than the sum of its proper divisors (295128516706).

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

202122020000 is an equidigital number, since it uses as much as digits as its factorization.

202122020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106131 (or 10106108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 202122020000 its reverse (20221202), we get a palindrome (202142241202).

The spelling of 202122020000 in words is "two hundred two billion, one hundred twenty-two million, twenty thousand".