12011012223 has 16 divisors (see below), whose sum is σ = 18315348480. Its totient is φ = 6858615456.

The previous prime is 12011012171. The next prime is 12011012231. The reversal of 12011012223 is 32221011021.

It is not a de Polignac number, because 12011012223 - 2⁸ = 12011011967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011012323) 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 15 ways as a sum of consecutive naturals, for example, 170115 + ... + 230132.

It is an arithmetic number, because the mean of its divisors is an integer number (1144709280).

Almost surely, 2^12011012223 is an apocalyptic number.

12011012223 is a deficient number, since it is larger than the sum of its proper divisors (6304336257).

12011012223 is a wasteful number, since it uses less digits than its factorization.

12011012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401686.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12011012223 its reverse (32221011021), we get a palindrome (44232023244).

The spelling of 12011012223 in words is "twelve billion, eleven million, twelve thousand, two hundred twenty-three".