3130221332 has 18 divisors (see below), whose sum is σ = 6372236682. Its totient is φ = 1341523344.

The previous prime is 3130221293. The next prime is 3130221337. The reversal of 3130221332 is 2331220313.

It can be written as a sum of positive squares in only one way, i.e., 3121903876 + 8317456 = 55874^2 + 2884^2 .

It is a super-3 number, since 3×3130221332³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130221337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7985063 + ... + 7985454.

It is an arithmetic number, because the mean of its divisors is an integer number (354013149).

Almost surely, 2^3130221332 is an apocalyptic number.

It is an amenable number.

3130221332 is an abundant number, since it is smaller than the sum of its proper divisors (3242015350).

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

3130221332 is a wasteful number, since it uses less digits than its factorization.

3130221332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15970535 (or 15970526 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3130221332 is about 55948.3809595952. The cubic root of 3130221332 is about 1462.8226702950.

Adding to 3130221332 its reverse (2331220313), we get a palindrome (5461441645).

The spelling of 3130221332 in words is "three billion, one hundred thirty million, two hundred twenty-one thousand, three hundred thirty-two".