112012001220 has 96 divisors (see below), whose sum is σ = 363486928896. Its totient is φ = 25242134400.

The previous prime is 112012001197. The next prime is 112012001237. The reversal of 112012001220 is 22100210211.

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

It is a junction number, because it is equal to n+sod(n) for n = 112012001196 and 112012001205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1848316 + ... + 1907955.

It is an arithmetic number, because the mean of its divisors is an integer number (3786322176).

Almost surely, 2^112012001220 is an apocalyptic number.

112012001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112012001220 is an abundant number, since it is smaller than the sum of its proper divisors (251474927676).

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

112012001220 is a wasteful number, since it uses less digits than its factorization.

112012001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756361 (or 3756359 counting only the distinct ones).

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

Adding to 112012001220 its reverse (22100210211), we get a palindrome (134112211431).

The spelling of 112012001220 in words is "one hundred twelve billion, twelve million, one thousand, two hundred twenty".