222000791 has 2 divisors, whose sum is σ = 222000792. Its totient is φ = 222000790.

The previous prime is 222000763. The next prime is 222000833. The reversal of 222000791 is 197000222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222000791 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_12226613 and since 222000791 and 12226613 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222000721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000395 + 111000396.

It is an arithmetic number, because the mean of its divisors is an integer number (111000396).

Almost surely, 2^222000791 is an apocalyptic number.

222000791 is a deficient number, since it is larger than the sum of its proper divisors (1).

222000791 is an equidigital number, since it uses as much as digits as its factorization.

222000791 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 23.

The square root of 222000791 is about 14899.6909699497. The cubic root of 222000791 is about 605.5056138010.

The spelling of 222000791 in words is "two hundred twenty-two million, seven hundred ninety-one", and thus it is an aban number.