202122012 has 24 divisors (see below), whose sum is σ = 471912336. Its totient is φ = 67331968.

The previous prime is 202122007. The next prime is 202122013. The reversal of 202122012 is 210221202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19408 + ... + 27944.

It is an arithmetic number, because the mean of its divisors is an integer number (19663014).

Almost surely, 2^202122012 is an apocalyptic number.

It is an amenable number.

202122012 is an abundant number, since it is smaller than the sum of its proper divisors (269790324).

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

202122012 is a wasteful number, since it uses less digits than its factorization.

202122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10517 (or 10515 counting only the distinct ones).

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

The square root of 202122012 is about 14216.9621227603. The cubic root of 202122012 is about 586.8645425545.

Adding to 202122012 its reverse (210221202), we get a palindrome (412343214).

The spelling of 202122012 in words is "two hundred two million, one hundred twenty-two thousand, twelve".