11223021100 has 18 divisors (see below), whose sum is σ = 24353956004. Its totient is φ = 4489208400.

The previous prime is 11223021071. The next prime is 11223021163. The reversal of 11223021100 is 112032211.

It is a super-2 number, since 2×11223021100² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56115006 + ... + 56115205.

Almost surely, 2^11223021100 is an apocalyptic number.

11223021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11223021100 is an abundant number, since it is smaller than the sum of its proper divisors (13130934904).

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

11223021100 is a wasteful number, since it uses less digits than its factorization.

11223021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112230225 (or 112230218 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11223021100 its reverse (112032211), we get a palindrome (11335053311).

The spelling of 11223021100 in words is "eleven billion, two hundred twenty-three million, twenty-one thousand, one hundred".