2122312243 has 2 divisors, whose sum is σ = 2122312244. Its totient is φ = 2122312242.

The previous prime is 2122312223. The next prime is 2122312253. The reversal of 2122312243 is 3422132212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122312243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2122312223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061156121 + 1061156122.

It is an arithmetic number, because the mean of its divisors is an integer number (1061156122).

Almost surely, 2^2122312243 is an apocalyptic number.

2122312243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122312243 is an equidigital number, since it uses as much as digits as its factorization.

2122312243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 22.

The square root of 2122312243 is about 46068.5602444878. The cubic root of 2122312243 is about 1285.0985289860.

Adding to 2122312243 its reverse (3422132212), we get a palindrome (5544444455).

The spelling of 2122312243 in words is "two billion, one hundred twenty-two million, three hundred twelve thousand, two hundred forty-three".