331132202022121 has 4 divisors (see below), whose sum is σ = 336560598776644. Its totient is φ = 325703805267600.

The previous prime is 331132202022119. The next prime is 331132202022217. The reversal of 331132202022121 is 121220202231133.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20330675192025 + 310801526830096 = 4508955^2 + 17629564^2 .

It is a cyclic number.

It is not a de Polignac number, because 331132202022121 - 2¹ = 331132202022119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331132202023121) 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, 2714198377170 + ... + 2714198377291.

It is an arithmetic number, because the mean of its divisors is an integer number (84140149694161).

Almost surely, 2^{331132202022121} is an apocalyptic number.

It is an amenable number.

331132202022121 is a deficient number, since it is larger than the sum of its proper divisors (5428396754523).

331132202022121 is an equidigital number, since it uses as much as digits as its factorization.

331132202022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428396754522.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 331132202022121 its reverse (121220202231133), we get a palindrome (452352404253254).

The spelling of 331132202022121 in words is "three hundred thirty-one trillion, one hundred thirty-two billion, two hundred two million, twenty-two thousand, one hundred twenty-one".