12270861874441 has 3 divisors (see below), whose sum is σ = 12270865377421. Its totient is φ = 12270858371462.

The previous prime is 12270861874429. The next prime is 12270861874463. The reversal of 12270861874441 is 14447816807221.

The square root of 12270861874441 is 3502979.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-12270861874441 is a prime.

It is a super-2 number, since 2×12270861874441² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12270861872441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1751490 + ... + 5254468.

Almost surely, 2^{12270861874441} is an apocalyptic number.

12270861874441 is the 3502979-th square number.

12270861874441 is the 1751490-th centered octagonal number.

It is an amenable number.

12270861874441 is a deficient number, since it is larger than the sum of its proper divisors (3502980).

12270861874441 is an frugal number, since it uses more digits than its factorization.

12270861874441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7005958 (or 3502979 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 55.

The spelling of 12270861874441 in words is "twelve trillion, two hundred seventy billion, eight hundred sixty-one million, eight hundred seventy-four thousand, four hundred forty-one".