3231122013221 has 16 divisors (see below), whose sum is σ = 3339820753920. Its totient is φ = 3123856673280.

The previous prime is 3231122013167. The next prime is 3231122013263. The reversal of 3231122013221 is 1223102211323.

It is a cyclic number.

It is not a de Polignac number, because 3231122013221 - 2¹⁰ = 3231122012197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231122813221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27010940 + ... + 27130298.

It is an arithmetic number, because the mean of its divisors is an integer number (208738797120).

Almost surely, 2^{3231122013221} is an apocalyptic number.

It is an amenable number.

3231122013221 is a deficient number, since it is larger than the sum of its proper divisors (108698740699).

3231122013221 is a wasteful number, since it uses less digits than its factorization.

3231122013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125356.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 3231122013221 its reverse (1223102211323), we get a palindrome (4454224224544).

The spelling of 3231122013221 in words is "three trillion, two hundred thirty-one billion, one hundred twenty-two million, thirteen thousand, two hundred twenty-one".