202111221210012 has 60 divisors (see below), whose sum is σ = 541245451957056. Its totient is φ = 65727226405440.

The previous prime is 202111221210011. The next prime is 202111221210047. The reversal of 202111221210012 is 210012122111202.

202111221210012 is a `hidden beast` number, since 20 + 211 + 1 + 221 + 210 + 0 + 1 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111221210011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7607304588 + ... + 7607331155.

Almost surely, 2^{202111221210012} is an apocalyptic number.

It is an amenable number.

202111221210012 is an abundant number, since it is smaller than the sum of its proper divisors (339134230747044).

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

202111221210012 is a wasteful number, since it uses less digits than its factorization.

202111221210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15214635800 (or 15214635789 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 202111221210012 its reverse (210012122111202), we get a palindrome (412123343321214).

The spelling of 202111221210012 in words is "two hundred two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred ten thousand, twelve".