122311105554018 has 64 divisors (see below), whose sum is σ = 252907000399872. Its totient is φ = 39404968102080.

The previous prime is 122311105553993. The next prime is 122311105554019. The reversal of 122311105554018 is 810455501113221.

It is a super-2 number, since 2×122311105554018² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122311105554019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22002055 + ... + 26994677.

It is an arithmetic number, because the mean of its divisors is an integer number (3951671881248).

Almost surely, 2^{122311105554018} is an apocalyptic number.

122311105554018 is an abundant number, since it is smaller than the sum of its proper divisors (130595894845854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122311105554018 is a wasteful number, since it uses less digits than its factorization.

122311105554018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993399.

The product of its (nonzero) digits is 48000, while the sum is 39.

Adding to 122311105554018 its reverse (810455501113221), we get a palindrome (932766606667239).

The spelling of 122311105554018 in words is "one hundred twenty-two trillion, three hundred eleven billion, one hundred five million, five hundred fifty-four thousand, eighteen".