12211426447 has 8 divisors (see below), whose sum is σ = 13329048960. Its totient is φ = 11095052760.

The previous prime is 12211426441. The next prime is 12211426453. The reversal of 12211426447 is 74462411221.

It is an interprime number because it is at equal distance from previous prime (12211426441) and next prime (12211426453).

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

It is not a de Polignac number, because 12211426447 - 2³ = 12211426439 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 (12211426441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291697 + ... + 330922.

It is an arithmetic number, because the mean of its divisors is an integer number (1666131120).

Almost surely, 2^12211426447 is an apocalyptic number.

12211426447 is a deficient number, since it is larger than the sum of its proper divisors (1117622513).

12211426447 is a wasteful number, since it uses less digits than its factorization.

12211426447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624413.

The product of its digits is 21504, while the sum is 34.

Adding to 12211426447 its reverse (74462411221), we get a palindrome (86673837668).

The spelling of 12211426447 in words is "twelve billion, two hundred eleven million, four hundred twenty-six thousand, four hundred forty-seven".