111100001210 has 16 divisors (see below), whose sum is σ = 218160002592. Its totient is φ = 40400000400.

The previous prime is 111100001203. The next prime is 111100001219. The reversal of 111100001210 is 12100001111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111100001219) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 504999896 + ... + 505000115.

It is an arithmetic number, because the mean of its divisors is an integer number (13635000162).

Almost surely, 2^111100001210 is an apocalyptic number.

111100001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111100001210 is a deficient number, since it is larger than the sum of its proper divisors (107060001382).

111100001210 is a wasteful number, since it uses less digits than its factorization.

111100001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010000029.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111100001210 its reverse (12100001111), we get a palindrome (123200002321).

Subtracting from 111100001210 its reverse (12100001111), we obtain a palindrome (99000000099).

The spelling of 111100001210 in words is "one hundred eleven billion, one hundred million, one thousand, two hundred ten".