12560221606 has 8 divisors (see below), whose sum is σ = 18844152624. Its totient is φ = 6278837400.

The previous prime is 12560221591. The next prime is 12560221607. The reversal of 12560221606 is 60612206521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12560221607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624325 + ... + 644128.

It is an arithmetic number, because the mean of its divisors is an integer number (2355519078).

Almost surely, 2^12560221606 is an apocalyptic number.

12560221606 is a deficient number, since it is larger than the sum of its proper divisors (6283931018).

12560221606 is a wasteful number, since it uses less digits than its factorization.

12560221606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273406.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 12560221606 in words is "twelve billion, five hundred sixty million, two hundred twenty-one thousand, six hundred six".