3221122280 has 32 divisors (see below), whose sum is σ = 7266191400. Its totient is φ = 1285130496.

The previous prime is 3221122279. The next prime is 3221122343. The reversal of 3221122280 is 822211223.

It can be written as a sum of positive squares in 4 ways, for example, as 2129084164 + 1092038116 = 46142^2 + 33046^2 .

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, 87947 + ... + 119066.

Almost surely, 2^3221122280 is an apocalyptic number.

It is an amenable number.

3221122280 is an abundant number, since it is smaller than the sum of its proper divisors (4045069120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3221122280 is a wasteful number, since it uses less digits than its factorization.

3221122280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207413 (or 207409 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 3221122280 is about 56754.9317680851. The cubic root of 3221122280 is about 1476.8477893786.

The spelling of 3221122280 in words is "three billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred eighty".