101139221868 has 48 divisors (see below), whose sum is σ = 236760975360. Its totient is φ = 33603243264.

The previous prime is 101139221851. The next prime is 101139221873. The reversal of 101139221868 is 868122931101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12200421 + ... + 12208707.

It is an arithmetic number, because the mean of its divisors is an integer number (4932520320).

Almost surely, 2^101139221868 is an apocalyptic number.

It is an amenable number.

101139221868 is an abundant number, since it is smaller than the sum of its proper divisors (135621753492).

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

101139221868 is a wasteful number, since it uses less digits than its factorization.

101139221868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11486 (or 11484 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The spelling of 101139221868 in words is "one hundred one billion, one hundred thirty-nine million, two hundred twenty-one thousand, eight hundred sixty-eight".