331130112222001 has 2 divisors, whose sum is σ = 331130112222002. Its totient is φ = 331130112222000.

The previous prime is 331130112221983. The next prime is 331130112222029. The reversal of 331130112222001 is 100222211031133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319358344360000 + 11771767862001 = 17870600^2 + 3431001^2 .

It is an emirp because it is prime and its reverse (100222211031133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331130112222001 - 2¹¹ = 331130112219953 is a prime.

It is not a weakly prime, because it can be changed into another prime (331130112222401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165565056111000 + 165565056111001.

It is an arithmetic number, because the mean of its divisors is an integer number (165565056111001).

Almost surely, 2^{331130112222001} is an apocalyptic number.

It is an amenable number.

331130112222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

331130112222001 is an equidigital number, since it uses as much as digits as its factorization.

331130112222001 is an evil number, because the sum of its binary digits is even.

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

Adding to 331130112222001 its reverse (100222211031133), we get a palindrome (431352323253134).

The spelling of 331130112222001 in words is "three hundred thirty-one trillion, one hundred thirty billion, one hundred twelve million, two hundred twenty-two thousand, one".