331022131201 has 2 divisors, whose sum is σ = 331022131202. Its totient is φ = 331022131200.

The previous prime is 331022131169. The next prime is 331022131247. The reversal of 331022131201 is 102131220133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254824049601 + 76198081600 = 504801^2 + 276040^2 .

It is an emirp because it is prime and its reverse (102131220133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331022131201 - 2⁵ = 331022131169 is a prime.

It is not a weakly prime, because it can be changed into another prime (331022131301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165511065600 + 165511065601.

It is an arithmetic number, because the mean of its divisors is an integer number (165511065601).

Almost surely, 2^331022131201 is an apocalyptic number.

It is an amenable number.

331022131201 is a deficient number, since it is larger than the sum of its proper divisors (1).

331022131201 is an equidigital number, since it uses as much as digits as its factorization.

331022131201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 331022131201 its reverse (102131220133), we get a palindrome (433153351334).

The spelling of 331022131201 in words is "three hundred thirty-one billion, twenty-two million, one hundred thirty-one thousand, two hundred one".