100999968228 has 30 divisors (see below), whose sum is σ = 264033868406. Its totient is φ = 33666655968.

The previous prime is 100999968211. The next prime is 100999968229. The reversal of 100999968228 is 822869999001.

It can be written as a sum of positive squares in only one way, i.e., 96566805504 + 4433162724 = 310752^2 + 66582^2 .

It is not an unprimeable number, because it can be changed into a prime (100999968229) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 155863825 + ... + 155864472.

Almost surely, 2^100999968228 is an apocalyptic number.

100999968228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

100999968228 is an abundant number, since it is smaller than the sum of its proper divisors (163033900178).

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

100999968228 is a wasteful number, since it uses less digits than its factorization.

100999968228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311728313 (or 311728302 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 63.

The spelling of 100999968228 in words is "one hundred billion, nine hundred ninety-nine million, nine hundred sixty-eight thousand, two hundred twenty-eight".