100220929728 has 112 divisors (see below), whose sum is σ = 272349285120. Its totient is φ = 32508048384.

The previous prime is 100220929673. The next prime is 100220929751. The reversal of 100220929728 is 827929022001.

It is a self number, because there is not a number n which added to its sum of digits gives 100220929728.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2198301 + ... + 2243427.

Almost surely, 2^100220929728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100220929728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136174642560).

100220929728 is an abundant number, since it is smaller than the sum of its proper divisors (172128355392).

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

100220929728 is a wasteful number, since it uses less digits than its factorization.

100220929728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45454 (or 45444 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 100220929728 in words is "one hundred billion, two hundred twenty million, nine hundred twenty-nine thousand, seven hundred twenty-eight".