12111000010 has 16 divisors (see below), whose sum is σ = 22551517800. Its totient is φ = 4677351616.

The previous prime is 12111000001. The next prime is 12111000017. The reversal of 12111000010 is 1000011121.

It can be written as a sum of positive squares in 4 ways, for example, as 9823386769 + 2287613241 = 99113^2 + 47829^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12110999957 and 12111000002.

It is not an unprimeable number, because it can be changed into a prime (12111000017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20880745 + ... + 20881324.

Almost surely, 2^12111000010 is an apocalyptic number.

12111000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111000010 is a deficient number, since it is larger than the sum of its proper divisors (10440517790).

12111000010 is a wasteful number, since it uses less digits than its factorization.

12111000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41762105.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 12111000010 its reverse (1000011121), we get a palindrome (13111011131).

The spelling of 12111000010 in words is "twelve billion, one hundred eleven million, ten", and thus it is an aban number.