1112220220 has 24 divisors (see below), whose sum is σ = 2385359424. Its totient is φ = 435422016.

The previous prime is 1112220163. The next prime is 1112220283. The reversal of 1112220220 is 220222111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112220220.

It is a congruent number.

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, 590667 + ... + 592546.

It is an arithmetic number, because the mean of its divisors is an integer number (99389976).

Almost surely, 2^1112220220 is an apocalyptic number.

1112220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112220220 is an abundant number, since it is smaller than the sum of its proper divisors (1273139204).

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

1112220220 is a wasteful number, since it uses less digits than its factorization.

1112220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183269 (or 1183267 counting only the distinct ones).

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

The square root of 1112220220 is about 33349.9658170739. The cubic root of 1112220220 is about 1036.0886799658.

Adding to 1112220220 its reverse (220222111), we get a palindrome (1332442331).

The spelling of 1112220220 in words is "one billion, one hundred twelve million, two hundred twenty thousand, two hundred twenty".