331220122021201 has 48 divisors (see below), whose sum is σ = 396988027188480. Its totient is φ = 270683900277120.

The previous prime is 331220122021189. The next prime is 331220122021241. The reversal of 331220122021201 is 102120221022133.

It is not a de Polignac number, because 331220122021201 - 2³⁷ = 331082683067729 is a prime.

It is a super-2 number, since 2×331220122021201² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331220122021241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2222566071 + ... + 2222715091.

It is an arithmetic number, because the mean of its divisors is an integer number (8270583899760).

Almost surely, 2^{331220122021201} is an apocalyptic number.

It is an amenable number.

331220122021201 is a deficient number, since it is larger than the sum of its proper divisors (65767905167279).

331220122021201 is a wasteful number, since it uses less digits than its factorization.

331220122021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151006 (or 150983 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 331220122021201 its reverse (102120221022133), we get a palindrome (433340343043334).

The spelling of 331220122021201 in words is "three hundred thirty-one trillion, two hundred twenty billion, one hundred twenty-two million, twenty-one thousand, two hundred one".