11120022220 has 24 divisors (see below), whose sum is σ = 23792653584. Its totient is φ = 4364083776.

The previous prime is 11120022163. The next prime is 11120022241. The reversal of 11120022220 is 2222002111.

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 11120022220.

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, 5244234 + ... + 5246353.

It is an arithmetic number, because the mean of its divisors is an integer number (991360566).

Almost surely, 2^11120022220 is an apocalyptic number.

11120022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11120022220 is an abundant number, since it is smaller than the sum of its proper divisors (12672631364).

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

11120022220 is a wasteful number, since it uses less digits than its factorization.

11120022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10490649 (or 10490647 counting only the distinct ones).

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

Adding to 11120022220 its reverse (2222002111), we get a palindrome (13342024331).

The spelling of 11120022220 in words is "eleven billion, one hundred twenty million, twenty-two thousand, two hundred twenty".