100021232 has 20 divisors (see below), whose sum is σ = 200474520. Its totient is φ = 48285888.

The previous prime is 100021231. The next prime is 100021237. The reversal of 100021232 is 232120001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021231) 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, 107318 + ... + 108245.

It is an arithmetic number, because the mean of its divisors is an integer number (10023726).

Almost surely, 2^100021232 is an apocalyptic number.

It is an amenable number.

100021232 is an abundant number, since it is smaller than the sum of its proper divisors (100453288).

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

100021232 is a wasteful number, since it uses less digits than its factorization.

100021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215600 (or 215594 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 100021232 is about 10001.0615436563. The cubic root of 100021232 is about 464.1917311080.

Adding to 100021232 its reverse (232120001), we get a palindrome (332141233).

The spelling of 100021232 in words is "one hundred million, twenty-one thousand, two hundred thirty-two".