2212311131 has 4 divisors (see below), whose sum is σ = 2212414512. Its totient is φ = 2212207752.

The previous prime is 2212311119. The next prime is 2212311137. The reversal of 2212311131 is 1311132122.

2212311131 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2212311131 - 2³⁰ = 1138569307 is a prime.

It is a super-2 number, since 2×2212311131² = 9788641080692998322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212311137) 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, 6311 + ... + 66816.

It is an arithmetic number, because the mean of its divisors is an integer number (553103628).

Almost surely, 2^2212311131 is an apocalyptic number.

2212311131 is a deficient number, since it is larger than the sum of its proper divisors (103381).

2212311131 is an equidigital number, since it uses as much as digits as its factorization.

2212311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103380.

The product of its digits is 72, while the sum is 17.

The square root of 2212311131 is about 47035.2116079007. The cubic root of 2212311131 is about 1303.0129585333.

Adding to 2212311131 its reverse (1311132122), we get a palindrome (3523443253).

The spelling of 2212311131 in words is "two billion, two hundred twelve million, three hundred eleven thousand, one hundred thirty-one".