122145234172 has 24 divisors (see below), whose sum is σ = 230206381776. Its totient is φ = 56372373888.

The previous prime is 122145234137. The next prime is 122145234187. The reversal of 122145234172 is 271432541221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2160408 + ... + 2216224.

It is an arithmetic number, because the mean of its divisors is an integer number (9591932574).

Almost surely, 2^122145234172 is an apocalyptic number.

It is an amenable number.

122145234172 is a deficient number, since it is larger than the sum of its proper divisors (108061147604).

122145234172 is a wasteful number, since it uses less digits than its factorization.

122145234172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97917 (or 97915 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

Adding to 122145234172 its reverse (271432541221), we get a palindrome (393577775393).

The spelling of 122145234172 in words is "one hundred twenty-two billion, one hundred forty-five million, two hundred thirty-four thousand, one hundred seventy-two".