122012112 has 20 divisors (see below), whose sum is σ = 315198080. Its totient is φ = 40670688.

The previous prime is 122012101. The next prime is 122012117. The reversal of 122012112 is 211210221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270912 + ... + 1271007.

It is an arithmetic number, because the mean of its divisors is an integer number (15759904).

Almost surely, 2^122012112 is an apocalyptic number.

122012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122012112 is an abundant number, since it is smaller than the sum of its proper divisors (193185968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122012112 is a wasteful number, since it uses less digits than its factorization.

122012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541930 (or 2541924 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 122012112 is about 11045.9092880577. The cubic root of 122012112 is about 495.9839788443.

Adding to 122012112 its reverse (211210221), we get a palindrome (333222333).

The spelling of 122012112 in words is "one hundred twenty-two million, twelve thousand, one hundred twelve".