12111111002 has 16 divisors (see below), whose sum is σ = 18316562400. Its totient is φ = 6005769840.

The previous prime is 12111110933. The next prime is 12111111029. The reversal of 12111111002 is 20011111121.

12111111002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91052 + ... + 180312.

It is an arithmetic number, because the mean of its divisors is an integer number (1144785150).

Almost surely, 2^12111111002 is an apocalyptic number.

12111111002 is a deficient number, since it is larger than the sum of its proper divisors (6205451398).

12111111002 is a wasteful number, since it uses less digits than its factorization.

12111111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89821.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12111111002 its reverse (20011111121), we get a palindrome (32122222123).

The spelling of 12111111002 in words is "twelve billion, one hundred eleven million, one hundred eleven thousand, two".