13121422111100 has 18 divisors (see below), whose sum is σ = 28473485981304. Its totient is φ = 5248568844400.

The previous prime is 13121422111069. The next prime is 13121422111111. The reversal of 13121422111100 is 111122412131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65607110456 + ... + 65607110655.

Almost surely, 2^{13121422111100} is an apocalyptic number.

13121422111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121422111100 is an abundant number, since it is smaller than the sum of its proper divisors (15352063870204).

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

13121422111100 is a wasteful number, since it uses less digits than its factorization.

13121422111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131214221125 (or 131214221118 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 13121422111100 its reverse (111122412131), we get a palindrome (13232544523231).

The spelling of 13121422111100 in words is "thirteen trillion, one hundred twenty-one billion, four hundred twenty-two million, one hundred eleven thousand, one hundred".