3125221010 has 32 divisors (see below), whose sum is σ = 5960805552. Its totient is φ = 1175664640.

The previous prime is 3125221007. The next prime is 3125221039. The reversal of 3125221010 is 101225213.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1368186121 + 1757034889 = 36989^2 + 41917^2 .

It is a super-2 number, since 2×3125221010² = 19534012722690840200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3125221010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245564 + ... + 257976.

Almost surely, 2^3125221010 is an apocalyptic number.

3125221010 is a deficient number, since it is larger than the sum of its proper divisors (2835584542).

3125221010 is a wasteful number, since it uses less digits than its factorization.

3125221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13918.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 3125221010 is about 55903.6761760799. The cubic root of 3125221010 is about 1462.0433342758.

Adding to 3125221010 its reverse (101225213), we get a palindrome (3226446223).

The spelling of 3125221010 in words is "three billion, one hundred twenty-five million, two hundred twenty-one thousand, ten".