11221020100120 has 16 divisors (see below), whose sum is σ = 25247295225360. Its totient is φ = 4488408040032.

The previous prime is 11221020100117. The next prime is 11221020100141. The reversal of 11221020100120 is 2100102012211.

It is a super-2 number, since 2×11221020100120² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11221020100120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140262751212 + ... + 140262751291.

It is an arithmetic number, because the mean of its divisors is an integer number (1577955951585).

Almost surely, 2^{11221020100120} is an apocalyptic number.

11221020100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221020100120 is an abundant number, since it is smaller than the sum of its proper divisors (14026275125240).

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

11221020100120 is a wasteful number, since it uses less digits than its factorization.

11221020100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280525502514 (or 280525502510 counting only the distinct ones).

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

Adding to 11221020100120 its reverse (2100102012211), we get a palindrome (13321122112331).

The spelling of 11221020100120 in words is "eleven trillion, two hundred twenty-one billion, twenty million, one hundred thousand, one hundred twenty".