122555305054511 has 4 divisors (see below), whose sum is σ = 140063205776592. Its totient is φ = 105047404332432.

The previous prime is 122555305054459. The next prime is 122555305054513. The reversal of 122555305054511 is 115450503555221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122555305054511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122555305054513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8753950361030 + ... + 8753950361043.

It is an arithmetic number, because the mean of its divisors is an integer number (35015801444148).

Almost surely, 2^{122555305054511} is an apocalyptic number.

122555305054511 is a deficient number, since it is larger than the sum of its proper divisors (17507900722081).

122555305054511 is an equidigital number, since it uses as much as digits as its factorization.

122555305054511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17507900722080.

The product of its (nonzero) digits is 750000, while the sum is 44.

The spelling of 122555305054511 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, three hundred five million, fifty-four thousand, five hundred eleven".