11220022100 has 72 divisors (see below), whose sum is σ = 29462489280. Its totient is φ = 3620574720.

The previous prime is 11220022097. The next prime is 11220022111. The reversal of 11220022100 is 122002211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 459530 + ... + 483329.

It is an arithmetic number, because the mean of its divisors is an integer number (409201240).

Almost surely, 2^11220022100 is an apocalyptic number.

11220022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220022100 is an abundant number, since it is smaller than the sum of its proper divisors (18242467180).

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

11220022100 is a wasteful number, since it uses less digits than its factorization.

11220022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942897 (or 942890 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11220022100 its reverse (122002211), we get a palindrome (11342024311).

The spelling of 11220022100 in words is "eleven billion, two hundred twenty million, twenty-two thousand, one hundred".