12214891441 has 9 divisors (see below), whose sum is σ = 12380316921. Its totient is φ = 12051651924.

The previous prime is 12214891433. The next prime is 12214891483. The reversal of 12214891441 is 14419841221.

The square root of 12214891441 is 110521.

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

It is not a de Polignac number, because 12214891441 - 2³ = 12214891433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12214891441.

It is not an unprimeable number, because it can be changed into a prime (12214891541) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8730460 + ... + 8731858.

It is an arithmetic number, because the mean of its divisors is an integer number (1375590769).

Almost surely, 2^12214891441 is an apocalyptic number.

12214891441 is the 110521-st square number.

12214891441 is the 55261-st centered octagonal number.

It is an amenable number.

12214891441 is a deficient number, since it is larger than the sum of its proper divisors (165425480).

12214891441 is an frugal number, since it uses more digits than its factorization.

12214891441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956 (or 1478 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The spelling of 12214891441 in words is "twelve billion, two hundred fourteen million, eight hundred ninety-one thousand, four hundred forty-one".