122489111 has 2 divisors, whose sum is σ = 122489112. Its totient is φ = 122489110.

The previous prime is 122489093. The next prime is 122489113. The reversal of 122489111 is 111984221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122489111 - 2²² = 118294807 is a prime.

Together with 122489113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122489113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61244555 + 61244556.

It is an arithmetic number, because the mean of its divisors is an integer number (61244556).

Almost surely, 2^122489111 is an apocalyptic number.

122489111 is a deficient number, since it is larger than the sum of its proper divisors (1).

122489111 is an equidigital number, since it uses as much as digits as its factorization.

122489111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 29.

The square root of 122489111 is about 11067.4798847796. The cubic root of 122489111 is about 496.6294782199.

The spelling of 122489111 in words is "one hundred twenty-two million, four hundred eighty-nine thousand, one hundred eleven".