221022112200012 has 72 divisors (see below), whose sum is σ = 599366051466000. Its totient is φ = 71133553342656.

The previous prime is 221022112199953. The next prime is 221022112200083. The reversal of 221022112200012 is 210002211220122.

It is a happy number.

221022112200012 is a `hidden beast` number, since 2 + 210 + 221 + 1 + 220 + 0 + 0 + 12 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3920471887 + ... + 3920528262.

Almost surely, 2^{221022112200012} is an apocalyptic number.

It is an amenable number.

221022112200012 is an abundant number, since it is smaller than the sum of its proper divisors (378343939265988).

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

221022112200012 is a wasteful number, since it uses less digits than its factorization.

221022112200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841000197 (or 7841000183 counting only the distinct ones).

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

Adding to 221022112200012 its reverse (210002211220122), we get a palindrome (431024323420134).

The spelling of 221022112200012 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred twelve million, two hundred thousand, twelve".