1110222220 has 48 divisors (see below), whose sum is σ = 2412748800. Its totient is φ = 428679360.

The previous prime is 1110222187. The next prime is 1110222257. The reversal of 1110222220 is 222220111.

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 1110222220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270141 + ... + 274219.

It is an arithmetic number, because the mean of its divisors is an integer number (50265600).

Almost surely, 2^1110222220 is an apocalyptic number.

1110222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1110222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1206374400).

1110222220 is an abundant number, since it is smaller than the sum of its proper divisors (1302526580).

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

1110222220 is a wasteful number, since it uses less digits than its factorization.

1110222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558 (or 4556 counting only the distinct ones).

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

The square root of 1110222220 is about 33319.9972989195. The cubic root of 1110222220 is about 1035.4678958298.

Adding to 1110222220 its reverse (222220111), we get a palindrome (1332442331).

The spelling of 1110222220 in words is "one billion, one hundred ten million, two hundred twenty-two thousand, two hundred twenty".