2231312122 has 32 divisors (see below), whose sum is σ = 3736196352. Its totient is φ = 992844864.

The previous prime is 2231312089. The next prime is 2231312123. The reversal of 2231312122 is 2212131322.

It is a super-3 number, since 3×2231312122³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231312122.

It is not an unprimeable number, because it can be changed into a prime (2231312123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68248 + ... + 95500.

It is an arithmetic number, because the mean of its divisors is an integer number (116756136).

Almost surely, 2^2231312122 is an apocalyptic number.

2231312122 is a deficient number, since it is larger than the sum of its proper divisors (1504884230).

2231312122 is a wasteful number, since it uses less digits than its factorization.

2231312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27382.

The product of its digits is 288, while the sum is 19.

The square root of 2231312122 is about 47236.7666336298. The cubic root of 2231312122 is about 1306.7327475807.

Adding to 2231312122 its reverse (2212131322), we get a palindrome (4443443444).

The spelling of 2231312122 in words is "two billion, two hundred thirty-one million, three hundred twelve thousand, one hundred twenty-two".