11220012210100 has 72 divisors (see below), whose sum is σ = 24364692509528. Its totient is φ = 4484823552000.

The previous prime is 11220012210089. The next prime is 11220012210133. The reversal of 11220012210100 is 101221002211.

It can be written as a sum of positive squares in 12 ways, for example, as 1286849747236 + 9933162462864 = 1134394^2 + 3151692^2 .

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, 1133215150 + ... + 1133225050.

Almost surely, 2^{11220012210100} is an apocalyptic number.

11220012210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220012210100 is an abundant number, since it is smaller than the sum of its proper divisors (13144680299428).

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

11220012210100 is a wasteful number, since it uses less digits than its factorization.

11220012210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16805 (or 16798 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11220012210100 its reverse (101221002211), we get a palindrome (11321233212311).

The spelling of 11220012210100 in words is "eleven trillion, two hundred twenty billion, twelve million, two hundred ten thousand, one hundred".