100122860 has 24 divisors (see below), whose sum is σ = 222626880. Its totient is φ = 37693184.

The previous prime is 100122833. The next prime is 100122881. The reversal of 100122860 is 68221001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146900 + ... + 147579.

It is an arithmetic number, because the mean of its divisors is an integer number (9276120).

Almost surely, 2^100122860 is an apocalyptic number.

100122860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100122860 is an abundant number, since it is smaller than the sum of its proper divisors (122504020).

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

100122860 is a wasteful number, since it uses less digits than its factorization.

100122860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294505 (or 294503 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 100122860 is about 10006.1411143357. The cubic root of 100122860 is about 464.3488941015.

Adding to 100122860 its reverse (68221001), we get a palindrome (168343861).

The spelling of 100122860 in words is "one hundred million, one hundred twenty-two thousand, eight hundred sixty".