100121232 has 40 divisors (see below), whose sum is σ = 259006240. Its totient is φ = 33327360.

The previous prime is 100121213. The next prime is 100121237. The reversal of 100121232 is 232121001.

It is a super-2 number, since 2×100121232² = 20048522194395648, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (100121237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62619 + ... + 64197.

It is an arithmetic number, because the mean of its divisors is an integer number (6475156).

Almost surely, 2^100121232 is an apocalyptic number.

100121232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100121232 is an abundant number, since it is smaller than the sum of its proper divisors (158885008).

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

100121232 is a wasteful number, since it uses less digits than its factorization.

100121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911 (or 2905 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100121232 is about 10006.0597639630. The cubic root of 100121232 is about 464.3463773133.

Adding to 100121232 its reverse (232121001), we get a palindrome (332242233).

The spelling of 100121232 in words is "one hundred million, one hundred twenty-one thousand, two hundred thirty-two".