12211352475506 has 8 divisors (see below), whose sum is σ = 18317478962604. Its totient is φ = 6105526154640.

The previous prime is 12211352475479. The next prime is 12211352475529. The reversal of 12211352475506 is 60557425311221.

It can be written as a sum of positive squares in 2 ways, for example, as 11986074092281 + 225278383225 = 3462091^2 + 474635^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74939825 + ... + 75102596.

Almost surely, 2^{12211352475506} is an apocalyptic number.

12211352475506 is a deficient number, since it is larger than the sum of its proper divisors (6106126487098).

12211352475506 is a wasteful number, since it uses less digits than its factorization.

12211352475506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150083116.

The product of its (nonzero) digits is 504000, while the sum is 44.

Adding to 12211352475506 its reverse (60557425311221), we get a palindrome (72768777786727).

The spelling of 12211352475506 in words is "twelve trillion, two hundred eleven billion, three hundred fifty-two million, four hundred seventy-five thousand, five hundred six".