422051111 has 2 divisors, whose sum is σ = 422051112. Its totient is φ = 422051110.

The previous prime is 422051059. The next prime is 422051141. The reversal of 422051111 is 111150224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422051111 - 2²² = 417856807 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422051111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422051141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211025555 + 211025556.

It is an arithmetic number, because the mean of its divisors is an integer number (211025556).

Almost surely, 2^422051111 is an apocalyptic number.

422051111 is a deficient number, since it is larger than the sum of its proper divisors (1).

422051111 is an equidigital number, since it uses as much as digits as its factorization.

422051111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 422051111 is about 20543.8825687843. The cubic root of 422051111 is about 750.1043475555.

The spelling of 422051111 in words is "four hundred twenty-two million, fifty-one thousand, one hundred eleven".