132012221 has 4 divisors (see below), whose sum is σ = 144013344. Its totient is φ = 120011100.

The previous prime is 132012197. The next prime is 132012227. The reversal of 132012221 is 122210231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 132012221 - 2¹⁸ = 131750077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 132012196 and 132012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132012227) 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, 6000545 + ... + 6000566.

It is an arithmetic number, because the mean of its divisors is an integer number (36003336).

Almost surely, 2^132012221 is an apocalyptic number.

132012221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

132012221 is a deficient number, since it is larger than the sum of its proper divisors (12001123).

132012221 is a wasteful number, since it uses less digits than its factorization.

132012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12001122.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 132012221 is about 11489.6571315249. The cubic root of 132012221 is about 509.1800498582.

Adding to 132012221 its reverse (122210231), we get a palindrome (254222452).

The spelling of 132012221 in words is "one hundred thirty-two million, twelve thousand, two hundred twenty-one".