122511047 has 2 divisors, whose sum is σ = 122511048. Its totient is φ = 122511046.

The previous prime is 122511023. The next prime is 122511049. The reversal of 122511047 is 740115221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122511047 - 2¹⁰ = 122510023 is a prime.

Together with 122511049, 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 (122511049) 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, 61255523 + 61255524.

It is an arithmetic number, because the mean of its divisors is an integer number (61255524).

Almost surely, 2^122511047 is an apocalyptic number.

122511047 is a deficient number, since it is larger than the sum of its proper divisors (1).

122511047 is an equidigital number, since it uses as much as digits as its factorization.

122511047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 122511047 is about 11068.4708519289. The cubic root of 122511047 is about 496.6591227978.

Adding to 122511047 its reverse (740115221), we get a palindrome (862626268).

The spelling of 122511047 in words is "one hundred twenty-two million, five hundred eleven thousand, forty-seven".