100122928 has 20 divisors (see below), whose sum is σ = 205399800. Its totient is φ = 47116544.

The previous prime is 100122923. The next prime is 100122929. The reversal of 100122928 is 829221001.

It is a super-2 number, since 2×100122928² = 20049201422586368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100122923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183778 + ... + 184321.

It is an arithmetic number, because the mean of its divisors is an integer number (10269990).

Almost surely, 2^100122928 is an apocalyptic number.

It is an amenable number.

100122928 is an abundant number, since it is smaller than the sum of its proper divisors (105276872).

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

100122928 is a wasteful number, since it uses less digits than its factorization.

100122928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368124 (or 368118 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 100122928 is about 10006.1445122485. The cubic root of 100122928 is about 464.3489992247.

Adding to 100122928 its reverse (829221001), we get a palindrome (929343929).

The spelling of 100122928 in words is "one hundred million, one hundred twenty-two thousand, nine hundred twenty-eight".