3221213012 has 24 divisors (see below), whose sum is σ = 5748019200. Its totient is φ = 1578970016.

The previous prime is 3221212999. The next prime is 3221213027. The reversal of 3221213012 is 2103121223.

It is a super-2 number, since 2×3221213012² = 20752426537356224288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299789 + ... + 310347.

It is an arithmetic number, because the mean of its divisors is an integer number (239500800).

Almost surely, 2^3221213012 is an apocalyptic number.

It is an amenable number.

3221213012 is a deficient number, since it is larger than the sum of its proper divisors (2526806188).

3221213012 is a wasteful number, since it uses less digits than its factorization.

3221213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12055 (or 12053 counting only the distinct ones).

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

The square root of 3221213012 is about 56755.7310938728. The cubic root of 3221213012 is about 1476.8616557771.

Adding to 3221213012 its reverse (2103121223), we get a palindrome (5324334235).

The spelling of 3221213012 in words is "three billion, two hundred twenty-one million, two hundred thirteen thousand, twelve".