3132111221 has 16 divisors (see below), whose sum is σ = 3328162560. Its totient is φ = 2939302080.

The previous prime is 3132111217. The next prime is 3132111247. The reversal of 3132111221 is 1221112313.

It is a cyclic number.

It is not a de Polignac number, because 3132111221 - 2² = 3132111217 is a prime.

It is a super-2 number, since 2×3132111221² = 19620241401428221682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3132111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3132111251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1093331 + ... + 1096191.

It is an arithmetic number, because the mean of its divisors is an integer number (208010160).

Almost surely, 2^3132111221 is an apocalyptic number.

It is an amenable number.

3132111221 is a deficient number, since it is larger than the sum of its proper divisors (196051339).

3132111221 is a wasteful number, since it uses less digits than its factorization.

3132111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404.

The product of its digits is 72, while the sum is 17.

The square root of 3132111221 is about 55965.2679882800. The cubic root of 3132111221 is about 1463.1170069133.

Adding to 3132111221 its reverse (1221112313), we get a palindrome (4353223534).

It can be divided in two parts, 313211 and 1221, that added together give a cube (314432 = 68³).

The spelling of 3132111221 in words is "three billion, one hundred thirty-two million, one hundred eleven thousand, two hundred twenty-one".