132012021 has 24 divisors (see below), whose sum is σ = 191381344. Its totient is φ = 80881920.

The previous prime is 132012017. The next prime is 132012047. The reversal of 132012021 is 120210231.

It is not a de Polignac number, because 132012021 - 2² = 132012017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132011988 and 132012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132012011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35511 + ... + 39051.

Almost surely, 2^132012021 is an apocalyptic number.

It is an amenable number.

132012021 is a deficient number, since it is larger than the sum of its proper divisors (59369323).

132012021 is a wasteful number, since it uses less digits than its factorization.

132012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3621 (or 3604 counting only the distinct ones).

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

The square root of 132012021 is about 11489.6484280417. The cubic root of 132012021 is about 509.1797927203.

Adding to 132012021 its reverse (120210231), we get a palindrome (252222252).

The spelling of 132012021 in words is "one hundred thirty-two million, twelve thousand, twenty-one".