172110011122 has 32 divisors (see below), whose sum is σ = 310624634880. Its totient is φ = 69867962640.

The previous prime is 172110011041. The next prime is 172110011189. The reversal of 172110011122 is 221110011271.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 172110011122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1708497 + ... + 1806427.

It is an arithmetic number, because the mean of its divisors is an integer number (9707019840).

Almost surely, 2^172110011122 is an apocalyptic number.

172110011122 is a deficient number, since it is larger than the sum of its proper divisors (138514623758).

172110011122 is a wasteful number, since it uses less digits than its factorization.

172110011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104566.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 172110011122 its reverse (221110011271), we get a palindrome (393220022393).

The spelling of 172110011122 in words is "one hundred seventy-two billion, one hundred ten million, eleven thousand, one hundred twenty-two".