202221112100 has 72 divisors (see below), whose sum is σ = 501708930240. Its totient is φ = 69305224320.

The previous prime is 202221112099. The next prime is 202221112117. The reversal of 202221112100 is 1211122202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1733411 + ... + 1846389.

Almost surely, 2^202221112100 is an apocalyptic number.

202221112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221112100 is an abundant number, since it is smaller than the sum of its proper divisors (299487818140).

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

202221112100 is a wasteful number, since it uses less digits than its factorization.

202221112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115557 (or 115550 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202221112100 its reverse (1211122202), we get a palindrome (203432234302).

The spelling of 202221112100 in words is "two hundred two billion, two hundred twenty-one million, one hundred twelve thousand, one hundred".