2331013220122 has 4 divisors (see below), whose sum is σ = 3496519830186. Its totient is φ = 1165506610060.

The previous prime is 2331013220117. The next prime is 2331013220161. The reversal of 2331013220122 is 2210223101332.

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

It can be written as a sum of positive squares in only one way, i.e., 2103628251321 + 227384968801 = 1450389^2 + 476849^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2331013220093 and 2331013220102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582753305029 + ... + 582753305032.

Almost surely, 2^{2331013220122} is an apocalyptic number.

2331013220122 is a deficient number, since it is larger than the sum of its proper divisors (1165506610064).

2331013220122 is a wasteful number, since it uses less digits than its factorization.

2331013220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165506610063.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2331013220122 its reverse (2210223101332), we get a palindrome (4541236321454).

The spelling of 2331013220122 in words is "two trillion, three hundred thirty-one billion, thirteen million, two hundred twenty thousand, one hundred twenty-two".