122555230777 has 4 divisors (see below), whose sum is σ = 140063120896. Its totient is φ = 105047340660.

The previous prime is 122555230717. The next prime is 122555230799. The reversal of 122555230777 is 777032555221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122555230777 - 2¹¹ = 122555228729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122555230717) 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, 8753945049 + ... + 8753945062.

It is an arithmetic number, because the mean of its divisors is an integer number (35015780224).

Almost surely, 2^122555230777 is an apocalyptic number.

It is an amenable number.

122555230777 is a deficient number, since it is larger than the sum of its proper divisors (17507890119).

122555230777 is an equidigital number, since it uses as much as digits as its factorization.

122555230777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17507890118.

The product of its (nonzero) digits is 1029000, while the sum is 46.

Adding to 122555230777 its reverse (777032555221), we get a palindrome (899587785998).

The spelling of 122555230777 in words is "one hundred twenty-two billion, five hundred fifty-five million, two hundred thirty thousand, seven hundred seventy-seven".