3201122231 has 4 divisors (see below), whose sum is σ = 3255378600. Its totient is φ = 3146865864.

The previous prime is 3201122227. The next prime is 3201122237. The reversal of 3201122231 is 1322211023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3201122231 - 2² = 3201122227 is a prime.

It is a super-2 number, since 2×3201122231² = 20494367075604834722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201122237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27128096 + ... + 27128213.

It is an arithmetic number, because the mean of its divisors is an integer number (813844650).

Almost surely, 2^3201122231 is an apocalyptic number.

3201122231 is a deficient number, since it is larger than the sum of its proper divisors (54256369).

3201122231 is an equidigital number, since it uses as much as digits as its factorization.

3201122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54256368.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3201122231 is about 56578.4608397931. The cubic root of 3201122231 is about 1473.7848432539.

Adding to 3201122231 its reverse (1322211023), we get a palindrome (4523333254).

The spelling of 3201122231 in words is "three billion, two hundred one million, one hundred twenty-two thousand, two hundred thirty-one".