12266774624221 has 32 divisors (see below), whose sum is σ = 13580372679552. Its totient is φ = 11008028528640.

The previous prime is 12266774624141. The next prime is 12266774624281. The reversal of 12266774624221 is 12242647766221.

It is not a de Polignac number, because 12266774624221 - 2¹⁵ = 12266774591453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12266774624281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279002986 + ... + 279046948.

It is an arithmetic number, because the mean of its divisors is an integer number (424386646236).

Almost surely, 2^{12266774624221} is an apocalyptic number.

It is an amenable number.

12266774624221 is a deficient number, since it is larger than the sum of its proper divisors (1313598055331).

12266774624221 is a wasteful number, since it uses less digits than its factorization.

12266774624221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45853.

The product of its digits is 5419008, while the sum is 52.

The spelling of 12266774624221 in words is "twelve trillion, two hundred sixty-six billion, seven hundred seventy-four million, six hundred twenty-four thousand, two hundred twenty-one".