155112122 has 32 divisors (see below), whose sum is σ = 258660864. Its totient is φ = 69175600.

The previous prime is 155112119. The next prime is 155112157. The reversal of 155112122 is 221211551.

It is a junction number, because it is equal to n+sod(n) for n = 155112094 and 155112103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308123 + ... + 308625.

It is an arithmetic number, because the mean of its divisors is an integer number (8083152).

Almost surely, 2^155112122 is an apocalyptic number.

155112122 is a deficient number, since it is larger than the sum of its proper divisors (103548742).

155112122 is a wasteful number, since it uses less digits than its factorization.

155112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754.

The product of its digits is 200, while the sum is 20.

The square root of 155112122 is about 12454.4017118447. The cubic root of 155112122 is about 537.2980277395.

Adding to 155112122 its reverse (221211551), we get a palindrome (376323673).

The spelling of 155112122 in words is "one hundred fifty-five million, one hundred twelve thousand, one hundred twenty-two".