202100001222 has 64 divisors (see below), whose sum is σ = 499522775040. Its totient is φ = 53189907456.

The previous prime is 202100001209. The next prime is 202100001223. The reversal of 202100001222 is 222100001202.

It is a junction number, because it is equal to n+sod(n) for n = 202100001198 and 202100001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202100001223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2977647 + ... + 3044762.

It is an arithmetic number, because the mean of its divisors is an integer number (7805043360).

Almost surely, 2^202100001222 is an apocalyptic number.

202100001222 is an abundant number, since it is smaller than the sum of its proper divisors (297422773818).

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

202100001222 is a wasteful number, since it uses less digits than its factorization.

202100001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6022485.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202100001222 its reverse (222100001202), we get a palindrome (424200002424).

The spelling of 202100001222 in words is "two hundred two billion, one hundred million, one thousand, two hundred twenty-two".