1220112112 has 20 divisors (see below), whose sum is σ = 2421626256. Its totient is φ = 595176320.

The previous prime is 1220112109. The next prime is 1220112121. The reversal of 1220112112 is 2112110221.

It is a junction number, because it is equal to n+sod(n) for n = 1220112092 and 1220112101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929308 + ... + 930619.

Almost surely, 2^1220112112 is an apocalyptic number.

It is an amenable number.

1220112112 is a deficient number, since it is larger than the sum of its proper divisors (1201514144).

1220112112 is a wasteful number, since it uses less digits than its factorization.

1220112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859976 (or 1859970 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1220112112 is about 34930.1032348890. The cubic root of 1220112112 is about 1068.5624600220.

Adding to 1220112112 its reverse (2112110221), we get a palindrome (3332222333).

The spelling of 1220112112 in words is "one billion, two hundred twenty million, one hundred twelve thousand, one hundred twelve".