221200122211112 has 64 divisors (see below), whose sum is σ = 461126607955200. Its totient is φ = 98636706720000.

The previous prime is 221200122211093. The next prime is 221200122211181. The reversal of 221200122211112 is 211112221002122.

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 15 ways as a sum of consecutive naturals, for example, 113194064 + ... + 115131647.

It is an arithmetic number, because the mean of its divisors is an integer number (7205103249300).

Almost surely, 2^{221200122211112} is an apocalyptic number.

221200122211112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221200122211112 is an abundant number, since it is smaller than the sum of its proper divisors (239926485744088).

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

221200122211112 is a wasteful number, since it uses less digits than its factorization.

221200122211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228325938 (or 228325934 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 221200122211112 its reverse (211112221002122), we get a palindrome (432312343213234).

The spelling of 221200122211112 in words is "two hundred twenty-one trillion, two hundred billion, one hundred twenty-two million, two hundred eleven thousand, one hundred twelve".