112012221220 has 24 divisors (see below), whose sum is σ = 236457220608. Its totient is φ = 44570306400.

The previous prime is 112012221071. The next prime is 112012221239. The reversal of 112012221220 is 22122210211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 112012221194 and 112012221203.

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 7 ways as a sum of consecutive naturals, for example, 14657466 + ... + 14665105.

It is an arithmetic number, because the mean of its divisors is an integer number (9852384192).

Almost surely, 2^112012221220 is an apocalyptic number.

112012221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112012221220 is an abundant number, since it is smaller than the sum of its proper divisors (124444999388).

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

112012221220 is a wasteful number, since it uses less digits than its factorization.

112012221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29322771 (or 29322769 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 112012221220 its reverse (22122210211), we get a palindrome (134134431431).

The spelling of 112012221220 in words is "one hundred twelve billion, twelve million, two hundred twenty-one thousand, two hundred twenty".