11313222220 has 24 divisors (see below), whose sum is σ = 25155283104. Its totient is φ = 4259095296.

The previous prime is 11313222187. The next prime is 11313222251. The reversal of 11313222220 is 2222231311.

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, 16636752 + ... + 16637431.

It is an arithmetic number, because the mean of its divisors is an integer number (1048136796).

Almost surely, 2^11313222220 is an apocalyptic number.

11313222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11313222220 is an abundant number, since it is smaller than the sum of its proper divisors (13842060884).

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

11313222220 is a wasteful number, since it uses less digits than its factorization.

11313222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33274209 (or 33274207 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11313222220 its reverse (2222231311), we get a palindrome (13535453531).

Subtracting from 11313222220 its reverse (2222231311), we obtain a palindrome (9090990909).

The spelling of 11313222220 in words is "eleven billion, three hundred thirteen million, two hundred twenty-two thousand, two hundred twenty".