12121932 has 24 divisors (see below), whose sum is σ = 28445872. Its totient is φ = 4017600.

The previous prime is 12121931. The next prime is 12121939. The reversal of 12121932 is 23912121.

It is a junction number, because it is equal to n+sod(n) for n = 12121899 and 12121908.

It is not an unprimeable number, because it can be changed into a prime (12121931) 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, 619 + ... + 4962.

Almost surely, 2^12121932 is an apocalyptic number.

12121932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12121932 is an abundant number, since it is smaller than the sum of its proper divisors (16323940).

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

12121932 is a wasteful number, since it uses less digits than its factorization.

12121932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5769 (or 5767 counting only the distinct ones).

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

The square root of 12121932 is about 3481.6565022989. The cubic root of 12121932 is about 229.7156662853.

The spelling of 12121932 in words is "twelve million, one hundred twenty-one thousand, nine hundred thirty-two".