420922111 has 2 divisors, whose sum is σ = 420922112. Its totient is φ = 420922110.

The previous prime is 420922063. The next prime is 420922157. The reversal of 420922111 is 111229024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420922111 - 2¹³ = 420913919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420922811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210461055 + 210461056.

It is an arithmetic number, because the mean of its divisors is an integer number (210461056).

Almost surely, 2^420922111 is an apocalyptic number.

420922111 is a deficient number, since it is larger than the sum of its proper divisors (1).

420922111 is an equidigital number, since it uses as much as digits as its factorization.

420922111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 420922111 is about 20516.3864020933. The cubic root of 420922111 is about 749.4348993590.

The spelling of 420922111 in words is "four hundred twenty million, nine hundred twenty-two thousand, one hundred eleven".