221101100000112 has 40 divisors (see below), whose sum is σ = 571187643932304. Its totient is φ = 73699101858304.

The previous prime is 221101100000101. The next prime is 221101100000147. The reversal of 221101100000112 is 211000001101122.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 36697083 + ... + 42295130.

Almost surely, 2^{221101100000112} is an apocalyptic number.

It is an amenable number.

221101100000112 is an abundant number, since it is smaller than the sum of its proper divisors (350086543932192).

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

221101100000112 is a wasteful number, since it uses less digits than its factorization.

221101100000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79050537 (or 79050531 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221101100000112 its reverse (211000001101122), we get a palindrome (432101101101234).

The spelling of 221101100000112 in words is "two hundred twenty-one trillion, one hundred one billion, one hundred million, one hundred twelve", and thus it is an aban number.