155404112122 has 32 divisors (see below), whose sum is σ = 267280058880. Its totient is φ = 66383867520.

The previous prime is 155404112119. The next prime is 155404112147. The reversal of 155404112122 is 221211404551.

155404112122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 5431438 + ... + 5459974.

It is an arithmetic number, because the mean of its divisors is an integer number (8352501840).

Almost surely, 2^155404112122 is an apocalyptic number.

155404112122 is a deficient number, since it is larger than the sum of its proper divisors (111875946758).

155404112122 is a wasteful number, since it uses less digits than its factorization.

155404112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29806.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 155404112122 its reverse (221211404551), we get a palindrome (376615516673).

The spelling of 155404112122 in words is "one hundred fifty-five billion, four hundred four million, one hundred twelve thousand, one hundred twenty-two".