2212311111131 has 16 divisors (see below), whose sum is σ = 2549772311040. Its totient is φ = 1900524706080.

The previous prime is 2212311111097. The next prime is 2212311111163. The reversal of 2212311111131 is 1311111132122.

It is a de Polignac number, because none of the positive numbers 2^k-2212311111131 is a prime.

It is a super-2 number, since 2×2212311111131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212311116131) 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, 73763141 + ... + 73793126.

It is an arithmetic number, because the mean of its divisors is an integer number (159360769440).

Almost surely, 2^{2212311111131} is an apocalyptic number.

2212311111131 is a deficient number, since it is larger than the sum of its proper divisors (337461199909).

2212311111131 is a wasteful number, since it uses less digits than its factorization.

2212311111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147556354.

The product of its digits is 72, while the sum is 20.

Adding to 2212311111131 its reverse (1311111132122), we get a palindrome (3523422243253).

The spelling of 2212311111131 in words is "two trillion, two hundred twelve billion, three hundred eleven million, one hundred eleven thousand, one hundred thirty-one".