100031222032 has 40 divisors (see below), whose sum is σ = 221855691200. Its totient is φ = 42801236352.

The previous prime is 100031222029. The next prime is 100031222033. The reversal of 100031222032 is 230222130001.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 100031221997 and 100031222015.

It is not an unprimeable number, because it can be changed into a prime (100031222033) 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, 652107 + ... + 790762.

It is an arithmetic number, because the mean of its divisors is an integer number (5546392280).

Almost surely, 2^100031222032 is an apocalyptic number.

It is an amenable number.

100031222032 is an abundant number, since it is smaller than the sum of its proper divisors (121824469168).

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

100031222032 is a wasteful number, since it uses less digits than its factorization.

100031222032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443503 (or 1443497 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 100031222032 its reverse (230222130001), we get a palindrome (330253352033).

The spelling of 100031222032 in words is "one hundred billion, thirty-one million, two hundred twenty-two thousand, thirty-two".