3220228125 has 72 divisors (see below), whose sum is σ = 5912387208. Its totient is φ = 1688400000.

The previous prime is 3220228097. The next prime is 3220228139. The reversal of 3220228125 is 5218220223.

It can be written as a sum of positive squares in 12 ways, for example, as 3092583321 + 127644804 = 55611^2 + 11298^2 .

It is not a de Polignac number, because 3220228125 - 2¹⁴ = 3220211741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1714687 + ... + 1716563.

It is an arithmetic number, because the mean of its divisors is an integer number (82116489).

Almost surely, 2^3220228125 is an apocalyptic number.

It is an amenable number.

3220228125 is a deficient number, since it is larger than the sum of its proper divisors (2692159083).

3220228125 is an equidigital number, since it uses as much as digits as its factorization.

3220228125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 3220228125 is about 56747.0538882857. The cubic root of 3220228125 is about 1476.7111234458.

Adding to 3220228125 its reverse (5218220223), we get a palindrome (8438448348).

The spelling of 3220228125 in words is "three billion, two hundred twenty million, two hundred twenty-eight thousand, one hundred twenty-five".