12266530621441 has 4 divisors (see below), whose sum is σ = 12551798775472. Its totient is φ = 11981262467412.

The previous prime is 12266530621439. The next prime is 12266530621451. The reversal of 12266530621441 is 14412603566221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12266530621441 - 2¹ = 12266530621439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 285268153987 = 12266530621441 / (1 + 2 + 2 + 6 + 6 + 5 + 3 + 0 + 6 + 2 + 1 + 4 + 4 + 1).

It is not an unprimeable number, because it can be changed into a prime (12266530621451) 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, 142634076951 + ... + 142634077036.

It is an arithmetic number, because the mean of its divisors is an integer number (3137949693868).

Almost surely, 2^{12266530621441} is an apocalyptic number.

It is an amenable number.

12266530621441 is a deficient number, since it is larger than the sum of its proper divisors (285268154031).

12266530621441 is an equidigital number, since it uses as much as digits as its factorization.

12266530621441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285268154030.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 12266530621441 in words is "twelve trillion, two hundred sixty-six billion, five hundred thirty million, six hundred twenty-one thousand, four hundred forty-one".