12211526680 has 64 divisors (see below), whose sum is σ = 27618796800. Its totient is φ = 4859289600.

The previous prime is 12211526671. The next prime is 12211526713. The reversal of 12211526680 is 8662511221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8485401 + ... + 8486839.

It is an arithmetic number, because the mean of its divisors is an integer number (431543700).

Almost surely, 2^12211526680 is an apocalyptic number.

12211526680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211526680 is an abundant number, since it is smaller than the sum of its proper divisors (15407270120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211526680 is a wasteful number, since it uses less digits than its factorization.

12211526680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404 (or 2400 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 12211526680 in words is "twelve billion, two hundred eleven million, five hundred twenty-six thousand, six hundred eighty".