121109232 has 40 divisors (see below), whose sum is σ = 315344896. Its totient is φ = 40049856.

The previous prime is 121109227. The next prime is 121109239. The reversal of 121109232 is 232901121.

It is a junction number, because it is equal to n+sod(n) for n = 121109199 and 121109208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121109239) 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, 3838 + ... + 16029.

Almost surely, 2^121109232 is an apocalyptic number.

121109232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121109232 is an abundant number, since it is smaller than the sum of its proper divisors (194235664).

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

121109232 is a wasteful number, since it uses less digits than its factorization.

121109232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20005 (or 19999 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 121109232 is about 11004.9639708633. The cubic root of 121109232 is about 494.7575345534.

The spelling of 121109232 in words is "one hundred twenty-one million, one hundred nine thousand, two hundred thirty-two".