111121112210100 has 36 divisors (see below), whose sum is σ = 321510417995424. Its totient is φ = 29632296589280.

The previous prime is 111121112210089. The next prime is 111121112210107. The reversal of 111121112210100 is 1012211121111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111121112210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121112210107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185201853384 + ... + 185201853983.

Almost surely, 2^{111121112210100} is an apocalyptic number.

111121112210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111121112210100 is an abundant number, since it is smaller than the sum of its proper divisors (210389305785324).

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

111121112210100 is a wasteful number, since it uses less digits than its factorization.

111121112210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370403707384 (or 370403707377 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111121112210100 its reverse (1012211121111), we get a palindrome (112133323331211).

The spelling of 111121112210100 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred twelve million, two hundred ten thousand, one hundred".