112220221220 has 24 divisors (see below), whose sum is σ = 235946772600. Its totient is φ = 44833934592.

The previous prime is 112220221213. The next prime is 112220221271. The reversal of 112220221220 is 22122022211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6865448164 + 105354773056 = 82858^2 + 324584^2 .

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, 3367625 + ... + 3400784.

It is an arithmetic number, because the mean of its divisors is an integer number (9831115525).

Almost surely, 2^112220221220 is an apocalyptic number.

112220221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112220221220 is an abundant number, since it is smaller than the sum of its proper divisors (123726551380).

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

112220221220 is a wasteful number, since it uses less digits than its factorization.

112220221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6769247 (or 6769245 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 112220221220 its reverse (22122022211), we get a palindrome (134342243431).

The spelling of 112220221220 in words is "one hundred twelve billion, two hundred twenty million, two hundred twenty-one thousand, two hundred twenty".