3220642773812 has 12 divisors (see below), whose sum is σ = 5645502769956. Its totient is φ = 1607641982400.

The previous prime is 3220642773797. The next prime is 3220642773823. The reversal of 3220642773812 is 2183772460223.

It can be written as a sum of positive squares in 2 ways, for example, as 2310381760036 + 910261013776 = 1519994^2 + 954076^2 .

It is a super-2 number, since 2×3220642773812² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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, 669848423 + ... + 669853230.

It is an arithmetic number, because the mean of its divisors is an integer number (470458564163).

Almost surely, 2^{3220642773812} is an apocalyptic number.

It is an amenable number.

3220642773812 is a deficient number, since it is larger than the sum of its proper divisors (2424859996144).

3220642773812 is a wasteful number, since it uses less digits than its factorization.

3220642773812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339702258 (or 1339702256 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 3220642773812 in words is "three trillion, two hundred twenty billion, six hundred forty-two million, seven hundred seventy-three thousand, eight hundred twelve".