202221200121012 has 24 divisors (see below), whose sum is σ = 524277185499200. Its totient is φ = 67407066706968.

The previous prime is 202221200121007. The next prime is 202221200121079. The reversal of 202221200121012 is 210121002122202.

It is a happy number.

202221200121012 is a `hidden beast` number, since 20 + 2 + 221 + 200 + 1 + 210 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936209259712 + ... + 936209259927.

Almost surely, 2^{202221200121012} is an apocalyptic number.

It is an amenable number.

202221200121012 is an abundant number, since it is smaller than the sum of its proper divisors (322055985378188).

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

202221200121012 is a wasteful number, since it uses less digits than its factorization.

202221200121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872418519652 (or 1872418519644 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202221200121012 its reverse (210121002122202), we get a palindrome (412342202243214).

The spelling of 202221200121012 in words is "two hundred two trillion, two hundred twenty-one billion, two hundred million, one hundred twenty-one thousand, twelve".