3152230221 has 24 divisors (see below), whose sum is σ = 4895260320. Its totient is φ = 1799032032.

The previous prime is 3152230177. The next prime is 3152230241. The reversal of 3152230221 is 1220322513.

It is not a de Polignac number, because 3152230221 - 2¹⁵ = 3152197453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3152230241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108930 + ... + 134796.

It is an arithmetic number, because the mean of its divisors is an integer number (203969180).

Almost surely, 2^3152230221 is an apocalyptic number.

It is an amenable number.

3152230221 is a deficient number, since it is larger than the sum of its proper divisors (1743030099).

3152230221 is a wasteful number, since it uses less digits than its factorization.

3152230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26713 (or 26706 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3152230221 is about 56144.7256739224. The cubic root of 3152230221 is about 1466.2430822630.

Adding to 3152230221 its reverse (1220322513), we get a palindrome (4372552734).

The spelling of 3152230221 in words is "three billion, one hundred fifty-two million, two hundred thirty thousand, two hundred twenty-one".