11100221210020 has 48 divisors (see below), whose sum is σ = 23633669723328. Its totient is φ = 4378717685120.

The previous prime is 11100221209999. The next prime is 11100221210027. The reversal of 11100221210020 is 2001212200111.

It is a super-2 number, since 2×11100221210020² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11100221210027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5077966 + ... + 6927205.

It is an arithmetic number, because the mean of its divisors is an integer number (492368119236).

Almost surely, 2^{11100221210020} is an apocalyptic number.

11100221210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100221210020 is an abundant number, since it is smaller than the sum of its proper divisors (12533448513308).

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

11100221210020 is a wasteful number, since it uses less digits than its factorization.

11100221210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12005820 (or 12005818 counting only the distinct ones).

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

Adding to 11100221210020 its reverse (2001212200111), we get a palindrome (13101433410131).

Subtracting from 11100221210020 its reverse (2001212200111), we obtain a palindrome (9099009009909).

The spelling of 11100221210020 in words is "eleven trillion, one hundred billion, two hundred twenty-one million, two hundred ten thousand, twenty".