122564011 has 2 divisors, whose sum is σ = 122564012. Its totient is φ = 122564010.

The previous prime is 122564009. The next prime is 122564021. The reversal of 122564011 is 110465221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122564011 - 2¹ = 122564009 is a prime.

Together with 122564009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122564021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61282005 + 61282006.

It is an arithmetic number, because the mean of its divisors is an integer number (61282006).

Almost surely, 2^122564011 is an apocalyptic number.

122564011 is a deficient number, since it is larger than the sum of its proper divisors (1).

122564011 is an equidigital number, since it uses as much as digits as its factorization.

122564011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 122564011 is about 11070.8631551474. The cubic root of 122564011 is about 496.7306844096.

The spelling of 122564011 in words is "one hundred twenty-two million, five hundred sixty-four thousand, eleven".