11112121102200 has 48 divisors (see below), whose sum is σ = 34447575418680. Its totient is φ = 2963232293760.

The previous prime is 11112121102189. The next prime is 11112121102297. The reversal of 11112121102200 is 220112121111.

It is a happy number.

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 11112121102200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9260100319 + ... + 9260101518.

Almost surely, 2^{11112121102200} is an apocalyptic number.

11112121102200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112121102200 is an abundant number, since it is smaller than the sum of its proper divisors (23335454316480).

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

11112121102200 is a wasteful number, since it uses less digits than its factorization.

11112121102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18520201856 (or 18520201847 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11112121102200 its reverse (220112121111), we get a palindrome (11332233223311).

The spelling of 11112121102200 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-one million, one hundred two thousand, two hundred".