11121221002100 has 36 divisors (see below), whose sum is σ = 26326963174848. Its totient is φ = 4044080364000.

The previous prime is 11121221002063. The next prime is 11121221002127. The reversal of 11121221002100 is 120012212111.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5055099356 + ... + 5055101555.

Almost surely, 2^{11121221002100} is an apocalyptic number.

11121221002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121221002100 is an abundant number, since it is smaller than the sum of its proper divisors (15205742172748).

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

11121221002100 is a wasteful number, since it uses less digits than its factorization.

11121221002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110200936 (or 10110200929 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11121221002100 its reverse (120012212111), we get a palindrome (11241233214211).

The spelling of 11121221002100 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty-one million, two thousand, one hundred".