3132112221 has 96 divisors (see below), whose sum is σ = 5468456448. Its totient is φ = 1690490880.

The previous prime is 3132112189. The next prime is 3132112223. The reversal of 3132112221 is 1222112313.

It is not a de Polignac number, because 3132112221 - 2⁵ = 3132112189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3132112194 and 3132112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3132112223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18755080 + ... + 18755246.

It is an arithmetic number, because the mean of its divisors is an integer number (56963088).

Almost surely, 2^3132112221 is an apocalyptic number.

It is an amenable number.

3132112221 is a deficient number, since it is larger than the sum of its proper divisors (2336344227).

3132112221 is a wasteful number, since it uses less digits than its factorization.

3132112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 408 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 3132112221 is about 55965.2769223918. The cubic root of 3132112221 is about 1463.1171626248.

Adding to 3132112221 its reverse (1222112313), we get a palindrome (4354224534).

The spelling of 3132112221 in words is "three billion, one hundred thirty-two million, one hundred twelve thousand, two hundred twenty-one".