3221615611712 has 28 divisors (see below), whose sum is σ = 6394180666020. Its totient is φ = 1610483475456.

The previous prime is 3221615611699. The next prime is 3221615611759. The reversal of 3221615611712 is 2171165161223.

It can be written as a sum of positive squares in 2 ways, for example, as 1263340032256 + 1958275579456 = 1123984^2 + 1399384^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4747163 + ... + 5383194.

It is an arithmetic number, because the mean of its divisors is an integer number (228363595215).

Almost surely, 2^{3221615611712} is an apocalyptic number.

3221615611712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3221615611712 is a deficient number, since it is larger than the sum of its proper divisors (3172565054308).

3221615611712 is a wasteful number, since it uses less digits than its factorization.

3221615611712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10135338 (or 10135328 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The spelling of 3221615611712 in words is "three trillion, two hundred twenty-one billion, six hundred fifteen million, six hundred eleven thousand, seven hundred twelve".