2213111243947 has 2 divisors, whose sum is σ = 2213111243948. Its totient is φ = 2213111243946.

The previous prime is 2213111243929. The next prime is 2213111243969. The reversal of 2213111243947 is 7493421113122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2213111243947 is a prime.

It is a super-2 number, since 2×2213111243947² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2213111243647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106555621973 + 1106555621974.

It is an arithmetic number, because the mean of its divisors is an integer number (1106555621974).

Almost surely, 2^{2213111243947} is an apocalyptic number.

2213111243947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213111243947 is an equidigital number, since it uses as much as digits as its factorization.

2213111243947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The spelling of 2213111243947 in words is "two trillion, two hundred thirteen billion, one hundred eleven million, two hundred forty-three thousand, nine hundred forty-seven".