1220040112 has 20 divisors (see below), whose sum is σ = 2364397776. Its totient is φ = 609872960.

The previous prime is 1220040091. The next prime is 1220040131. The reversal of 1220040112 is 2110400221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220040092 and 1220040101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95037 + ... + 107107.

Almost surely, 2^1220040112 is an apocalyptic number.

It is an amenable number.

1220040112 is a deficient number, since it is larger than the sum of its proper divisors (1144357664).

1220040112 is a wasteful number, since it uses less digits than its factorization.

1220040112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18396 (or 18390 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1220040112 is about 34929.0725900359. The cubic root of 1220040112 is about 1068.5414406393.

Adding to 1220040112 its reverse (2110400221), we get a palindrome (3330440333).

The spelling of 1220040112 in words is "one billion, two hundred twenty million, forty thousand, one hundred twelve".