1220233112 has 16 divisors (see below), whose sum is σ = 2614785360. Its totient is φ = 522957024.

The previous prime is 1220233111. The next prime is 1220233121. The reversal of 1220233112 is 2113320221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220233111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10894883 + ... + 10894994.

It is an arithmetic number, because the mean of its divisors is an integer number (163424085).

Almost surely, 2^1220233112 is an apocalyptic number.

It is an amenable number.

1220233112 is an abundant number, since it is smaller than the sum of its proper divisors (1394552248).

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

1220233112 is a wasteful number, since it uses less digits than its factorization.

1220233112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21789890 (or 21789886 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1220233112 is about 34931.8352223298. The cubic root of 1220233112 is about 1068.5977824001.

Adding to 1220233112 its reverse (2113320221), we get a palindrome (3333553333).

The spelling of 1220233112 in words is "one billion, two hundred twenty million, two hundred thirty-three thousand, one hundred twelve".