101221222112 has 24 divisors (see below), whose sum is σ = 211001592816. Its totient is φ = 47633516032.

The previous prime is 101221222073. The next prime is 101221222139. The reversal of 101221222112 is 211222122101.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93033668 + ... + 93034755.

It is an arithmetic number, because the mean of its divisors is an integer number (8791733034).

Almost surely, 2^101221222112 is an apocalyptic number.

It is an amenable number.

101221222112 is an abundant number, since it is smaller than the sum of its proper divisors (109780370704).

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

101221222112 is a wasteful number, since it uses less digits than its factorization.

101221222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186068450 (or 186068442 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101221222112 its reverse (211222122101), we get a palindrome (312443344213).

The spelling of 101221222112 in words is "one hundred one billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred twelve".