122012120112 has 80 divisors (see below), whose sum is σ = 334826819712. Its totient is φ = 38153548800.

The previous prime is 122012120057. The next prime is 122012120117. The reversal of 122012120112 is 211021210221.

It is a super-2 number, since 2×122012120112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122012120091 and 122012120100.

It is not an unprimeable number, because it can be changed into a prime (122012120117) by changing a digit.

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, 6987 + ... + 494037.

Almost surely, 2^122012120112 is an apocalyptic number.

122012120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122012120112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167413409856).

122012120112 is an abundant number, since it is smaller than the sum of its proper divisors (212814699600).

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

122012120112 is a wasteful number, since it uses less digits than its factorization.

122012120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487386 (or 487380 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122012120112 its reverse (211021210221), we get a palindrome (333033330333).

The spelling of 122012120112 in words is "one hundred twenty-two billion, twelve million, one hundred twenty thousand, one hundred twelve".