101222221199172 has 24 divisors (see below), whose sum is σ = 236204179782816. Its totient is φ = 33738026544768.

The previous prime is 101222221199167. The next prime is 101222221199173. The reversal of 101222221199172 is 271991122222101.

It is not an unprimeable number, because it can be changed into a prime (101222221199173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339076458 + ... + 339374849.

It is an arithmetic number, because the mean of its divisors is an integer number (9841840824284).

Almost surely, 2^{101222221199172} is an apocalyptic number.

101222221199172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101222221199172 is an abundant number, since it is smaller than the sum of its proper divisors (134981958583644).

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

101222221199172 is a wasteful number, since it uses less digits than its factorization.

101222221199172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678463747 (or 678463745 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 42.

The spelling of 101222221199172 in words is "one hundred one trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred ninety-nine thousand, one hundred seventy-two".