11121202020100 has 18 divisors (see below), whose sum is σ = 24133008383834. Its totient is φ = 4448480808000.

The previous prime is 11121202020043. The next prime is 11121202020101. The reversal of 11121202020100 is 102020212111.

It can be written as a sum of positive squares in 3 ways, for example, as 2794560829636 + 8326641190464 = 1671694^2 + 2885592^2 .

It is a super-2 number, since 2×11121202020100² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11121202020101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55606010001 + ... + 55606010200.

Almost surely, 2^{11121202020100} is an apocalyptic number.

11121202020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121202020100 is an abundant number, since it is smaller than the sum of its proper divisors (13011806363734).

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

11121202020100 is a wasteful number, since it uses less digits than its factorization.

11121202020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111212020215 (or 111212020208 counting only the distinct ones).

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

Adding to 11121202020100 its reverse (102020212111), we get a palindrome (11223222232211).

The spelling of 11121202020100 in words is "eleven trillion, one hundred twenty-one billion, two hundred two million, twenty thousand, one hundred".