122420559 has 16 divisors (see below), whose sum is σ = 170848512. Its totient is φ = 77825088.

The previous prime is 122420549. The next prime is 122420561. The reversal of 122420559 is 955024221.

It is not a de Polignac number, because 122420559 - 2⁸ = 122420303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122420549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21387 + ... + 26499.

It is an arithmetic number, because the mean of its divisors is an integer number (10678032).

Almost surely, 2^122420559 is an apocalyptic number.

122420559 is a deficient number, since it is larger than the sum of its proper divisors (48427953).

122420559 is a wasteful number, since it uses less digits than its factorization.

122420559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5486.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 122420559 is about 11064.3824500060. The cubic root of 122420559 is about 496.5368133921.

The spelling of 122420559 in words is "one hundred twenty-two million, four hundred twenty thousand, five hundred fifty-nine".