202201221020100 has 36 divisors (see below), whose sum is σ = 585035532819024. Its totient is φ = 53920325605280.

The previous prime is 202201221020089. The next prime is 202201221020119. The reversal of 202201221020100 is 1020122102202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202201221020100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337002034734 + ... + 337002035333.

Almost surely, 2^{202201221020100} is an apocalyptic number.

202201221020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202201221020100 is an abundant number, since it is smaller than the sum of its proper divisors (382834311798924).

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

202201221020100 is a wasteful number, since it uses less digits than its factorization.

202201221020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674004070084 (or 674004070077 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202201221020100 its reverse (1020122102202), we get a palindrome (203221343122302).

The spelling of 202201221020100 in words is "two hundred two trillion, two hundred one billion, two hundred twenty-one million, twenty thousand, one hundred".