2212318643 has 2 divisors, whose sum is σ = 2212318644. Its totient is φ = 2212318642.

The previous prime is 2212318583. The next prime is 2212318649. The reversal of 2212318643 is 3468132122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2212318643 - 2⁸ = 2212318387 is a prime.

It is a super-2 number, since 2×2212318643² = 9788707556330722898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2212318649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106159321 + 1106159322.

It is an arithmetic number, because the mean of its divisors is an integer number (1106159322).

Almost surely, 2^2212318643 is an apocalyptic number.

2212318643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212318643 is an equidigital number, since it uses as much as digits as its factorization.

2212318643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 32.

The square root of 2212318643 is about 47035.2914629005. The cubic root of 2212318643 is about 1303.0144333443.

The spelling of 2212318643 in words is "two billion, two hundred twelve million, three hundred eighteen thousand, six hundred forty-three".