7112212091 has 2 divisors, whose sum is σ = 7112212092. Its totient is φ = 7112212090.

The previous prime is 7112212061. The next prime is 7112212111. The reversal of 7112212091 is 1902122117.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7112212091 - 2²⁶ = 7045103227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7112212091.

It is not a weakly prime, because it can be changed into another prime (7112212001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3556106045 + 3556106046.

It is an arithmetic number, because the mean of its divisors is an integer number (3556106046).

Almost surely, 2^7112212091 is an apocalyptic number.

7112212091 is a deficient number, since it is larger than the sum of its proper divisors (1).

7112212091 is an equidigital number, since it uses as much as digits as its factorization.

7112212091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 7112212091 is about 84333.9320262016. The cubic root of 7112212091 is about 1923.0986649409.

The spelling of 7112212091 in words is "seven billion, one hundred twelve million, two hundred twelve thousand, ninety-one".