202221020020100 has 36 divisors (see below), whose sum is σ = 438821406382464. Its totient is φ = 80888077512480.

The previous prime is 202221020020087. The next prime is 202221020020157. The reversal of 202221020020100 is 1020020122202.

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, 21241337 + ... + 29251263.

It is an arithmetic number, because the mean of its divisors is an integer number (12189483510624).

Almost surely, 2^{202221020020100} is an apocalyptic number.

202221020020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221020020100 is an abundant number, since it is smaller than the sum of its proper divisors (236600386362364).

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

202221020020100 is a wasteful number, since it uses less digits than its factorization.

202221020020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8262404 (or 8262397 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202221020020100 its reverse (1020020122202), we get a palindrome (203241040142302).

The spelling of 202221020020100 in words is "two hundred two trillion, two hundred twenty-one billion, twenty million, twenty thousand, one hundred".