202100212220 has 12 divisors (see below), whose sum is σ = 424410445704. Its totient is φ = 80840084880.

The previous prime is 202100212201. The next prime is 202100212231. The reversal of 202100212220 is 22212001202.

202100212220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 202100212195 and 202100212204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5052505286 + ... + 5052505325.

It is an arithmetic number, because the mean of its divisors is an integer number (35367537142).

Almost surely, 2^202100212220 is an apocalyptic number.

202100212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202100212220 is an abundant number, since it is smaller than the sum of its proper divisors (222310233484).

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

202100212220 is a wasteful number, since it uses less digits than its factorization.

202100212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10105010620 (or 10105010618 counting only the distinct ones).

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

Adding to 202100212220 its reverse (22212001202), we get a palindrome (224312213422).

The spelling of 202100212220 in words is "two hundred two billion, one hundred million, two hundred twelve thousand, two hundred twenty".