3132012221 has 32 divisors (see below), whose sum is σ = 3665450880. Its totient is φ = 2650281984.

The previous prime is 3132012197. The next prime is 3132012229. The reversal of 3132012221 is 1222102313.

It is a cyclic number.

It is not a de Polignac number, because 3132012221 - 2¹⁸ = 3131750077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 3132012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3132012229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1337870 + ... + 1340208.

It is an arithmetic number, because the mean of its divisors is an integer number (114545340).

Almost surely, 2^3132012221 is an apocalyptic number.

It is an amenable number.

3132012221 is a deficient number, since it is larger than the sum of its proper divisors (533438659).

3132012221 is a wasteful number, since it uses less digits than its factorization.

3132012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3132012221 is about 55964.3835041538. The cubic root of 3132012221 is about 1463.1015913145.

Adding to 3132012221 its reverse (1222102313), we get a palindrome (4354114534).

The spelling of 3132012221 in words is "three billion, one hundred thirty-two million, twelve thousand, two hundred twenty-one".