100222031172 has 24 divisors (see below), whose sum is σ = 233949606016. Its totient is φ = 33393315168.

The previous prime is 100222031171. The next prime is 100222031197. The reversal of 100222031172 is 271130222001.

It is not an unprimeable number, because it can be changed into a prime (100222031171) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1723783 + ... + 1780974.

Almost surely, 2^100222031172 is an apocalyptic number.

100222031172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100222031172 is an abundant number, since it is smaller than the sum of its proper divisors (133727574844).

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

100222031172 is a wasteful number, since it uses less digits than its factorization.

100222031172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507147 (or 3507145 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

Adding to 100222031172 its reverse (271130222001), we get a palindrome (371352253173).

The spelling of 100222031172 in words is "one hundred billion, two hundred twenty-two million, thirty-one thousand, one hundred seventy-two".