3221312131201 has 4 divisors (see below), whose sum is σ = 3289850687232. Its totient is φ = 3152773575172.

The previous prime is 3221312131199. The next prime is 3221312131223. The reversal of 3221312131201 is 1021312131223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3221312131201 - 2¹ = 3221312131199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221312101201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34269277945 + ... + 34269278038.

It is an arithmetic number, because the mean of its divisors is an integer number (822462671808).

Almost surely, 2^{3221312131201} is an apocalyptic number.

It is an amenable number.

3221312131201 is a deficient number, since it is larger than the sum of its proper divisors (68538556031).

3221312131201 is an equidigital number, since it uses as much as digits as its factorization.

3221312131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68538556030.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 3221312131201 its sum of digits (22), we get a palindrome (3221312131223).

Adding to 3221312131201 its reverse (1021312131223), we get a palindrome (4242624262424).

The spelling of 3221312131201 in words is "three trillion, two hundred twenty-one billion, three hundred twelve million, one hundred thirty-one thousand, two hundred one".