100122240 has 64 divisors (see below), whose sum is σ = 319145760. Its totient is φ = 26698752.

The previous prime is 100122227. The next prime is 100122257. The reversal of 100122240 is 42221001.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 24154 + ... + 27993.

Almost surely, 2^100122240 is an apocalyptic number.

100122240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100122240 is an abundant number, since it is smaller than the sum of its proper divisors (219023520).

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

100122240 is an equidigital number, since it uses as much as digits as its factorization.

100122240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52169 (or 52157 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 100122240 is about 10006.1101333135. The cubic root of 100122240 is about 464.3479356227.

Adding to 100122240 its reverse (42221001), we get a palindrome (142343241).

The spelling of 100122240 in words is "one hundred million, one hundred twenty-two thousand, two hundred forty".