2231112222131 has 4 divisors (see below), whose sum is σ = 2402736239232. Its totient is φ = 2059488205032.

The previous prime is 2231112222127. The next prime is 2231112222149. The reversal of 2231112222131 is 1312222111322.

2231112222131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2231112222131 - 2² = 2231112222127 is a prime.

It is a super-3 number, since 3×2231112222131³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231112222097 and 2231112222106.

It is not an unprimeable number, because it can be changed into a prime (2231112422131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85812008531 + ... + 85812008556.

It is an arithmetic number, because the mean of its divisors is an integer number (600684059808).

Almost surely, 2^{2231112222131} is an apocalyptic number.

2231112222131 is a deficient number, since it is larger than the sum of its proper divisors (171624017101).

2231112222131 is a wasteful number, since it uses less digits than its factorization.

2231112222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171624017100.

The product of its digits is 576, while the sum is 23.

Adding to 2231112222131 its reverse (1312222111322), we get a palindrome (3543334333453).

The spelling of 2231112222131 in words is "two trillion, two hundred thirty-one billion, one hundred twelve million, two hundred twenty-two thousand, one hundred thirty-one".