221200102022012 has 24 divisors (see below), whose sum is σ = 395213820061536. Its totient is φ = 108290437714368.

The previous prime is 221200102021993. The next prime is 221200102022027. The reversal of 221200102022012 is 210220201002122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071145943 + ... + 1071352430.

It is an arithmetic number, because the mean of its divisors is an integer number (16467242502564).

Almost surely, 2^{221200102022012} is an apocalyptic number.

It is an amenable number.

221200102022012 is a deficient number, since it is larger than the sum of its proper divisors (174013718039524).

221200102022012 is a wasteful number, since it uses less digits than its factorization.

221200102022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142498917 (or 2142498915 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221200102022012 its reverse (210220201002122), we get a palindrome (431420303024134).

The spelling of 221200102022012 in words is "two hundred twenty-one trillion, two hundred billion, one hundred two million, twenty-two thousand, twelve".