202201221220212 has 48 divisors (see below), whose sum is σ = 486103937078592. Its totient is φ = 65376399333120.

The previous prime is 202201221220177. The next prime is 202201221220237. The reversal of 202201221220212 is 212022122102202.

It is a super-2 number, since 2×202201221220212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187712838 + ... + 1187883069.

It is an arithmetic number, because the mean of its divisors is an integer number (10127165355804).

Almost surely, 2^{202201221220212} is an apocalyptic number.

It is an amenable number.

202201221220212 is an abundant number, since it is smaller than the sum of its proper divisors (283902715858380).

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

202201221220212 is a wasteful number, since it uses less digits than its factorization.

202201221220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375596128 (or 2375596126 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 202201221220212 its reverse (212022122102202), we get a palindrome (414223343322414).

The spelling of 202201221220212 in words is "two hundred two trillion, two hundred one billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twelve".