2331131222012 has 12 divisors (see below), whose sum is σ = 4294189093320. Its totient is φ = 1104220052496.

The previous prime is 2331131222009. The next prime is 2331131222053. The reversal of 2331131222012 is 2102221311332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15336389543 + ... + 15336389694.

It is an arithmetic number, because the mean of its divisors is an integer number (357849091110).

Almost surely, 2^{2331131222012} is an apocalyptic number.

It is an amenable number.

2331131222012 is a deficient number, since it is larger than the sum of its proper divisors (1963057871308).

2331131222012 is a wasteful number, since it uses less digits than its factorization.

2331131222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30672779260 (or 30672779258 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2331131222012 its reverse (2102221311332), we get a palindrome (4433352533344).

The spelling of 2331131222012 in words is "two trillion, three hundred thirty-one billion, one hundred thirty-one million, two hundred twenty-two thousand, twelve".