11220212100 has 36 divisors (see below), whose sum is σ = 32463814544. Its totient is φ = 2992056480.

The previous prime is 11220212077. The next prime is 11220212117. The reversal of 11220212100 is 121202211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18700054 + ... + 18700653.

Almost surely, 2^11220212100 is an apocalyptic number.

11220212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220212100 is an abundant number, since it is smaller than the sum of its proper divisors (21243602444).

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

11220212100 is a wasteful number, since it uses less digits than its factorization.

11220212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37400724 (or 37400717 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11220212100 its reverse (121202211), we get a palindrome (11341414311).

The spelling of 11220212100 in words is "eleven billion, two hundred twenty million, two hundred twelve thousand, one hundred".