12211526679 has 16 divisors (see below), whose sum is σ = 17765080704. Its totient is φ = 7399733600.

The previous prime is 12211526671. The next prime is 12211526713. The reversal of 12211526679 is 97662511221.

It is a cyclic number.

It is not a de Polignac number, because 12211526679 - 2³ = 12211526671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12211526679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211526671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206149 + ... + 258689.

It is an arithmetic number, because the mean of its divisors is an integer number (1110317544).

Almost surely, 2^12211526679 is an apocalyptic number.

12211526679 is a deficient number, since it is larger than the sum of its proper divisors (5553554025).

12211526679 is a wasteful number, since it uses less digits than its factorization.

12211526679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59598.

The product of its digits is 90720, while the sum is 42.

The spelling of 12211526679 in words is "twelve billion, two hundred eleven million, five hundred twenty-six thousand, six hundred seventy-nine".