111553542122 has 64 divisors (see below), whose sum is σ = 196163192448. Its totient is φ = 47013120000.

The previous prime is 111553542119. The next prime is 111553542127. The reversal of 111553542122 is 221245355111.

111553542122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (111553542127) 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, 28965497 + ... + 28969347.

It is an arithmetic number, because the mean of its divisors is an integer number (3065049882).

Almost surely, 2^111553542122 is an apocalyptic number.

111553542122 is a deficient number, since it is larger than the sum of its proper divisors (84609650326).

111553542122 is a wasteful number, since it uses less digits than its factorization.

111553542122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015.

The product of its digits is 12000, while the sum is 32.

Adding to 111553542122 its reverse (221245355111), we get a palindrome (332798897233).

The spelling of 111553542122 in words is "one hundred eleven billion, five hundred fifty-three million, five hundred forty-two thousand, one hundred twenty-two".