111200001210 has 96 divisors (see below), whose sum is σ = 290495424960. Its totient is φ = 29512594944.

The previous prime is 111200001161. The next prime is 111200001239. The reversal of 111200001210 is 12100002111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111200001192 and 111200001201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18771309 + ... + 18777231.

It is an arithmetic number, because the mean of its divisors is an integer number (3025994010).

Almost surely, 2^111200001210 is an apocalyptic number.

111200001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111200001210 is an abundant number, since it is smaller than the sum of its proper divisors (179295423750).

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

111200001210 is a wasteful number, since it uses less digits than its factorization.

111200001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892 (or 6889 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111200001210 its reverse (12100002111), we get a palindrome (123300003321).

Subtracting from 111200001210 its reverse (12100002111), we obtain a palindrome (99099999099).

The spelling of 111200001210 in words is "one hundred eleven billion, two hundred million, one thousand, two hundred ten".