12221341231 has 8 divisors (see below), whose sum is σ = 13333181904. Its totient is φ = 11109635520.

The previous prime is 12221341219. The next prime is 12221341289. The reversal of 12221341231 is 13214312221.

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

It is a cyclic number.

It is not a de Polignac number, because 12221341231 - 2⁵ = 12221341199 is a prime.

It is a super-2 number, since 2×12221341231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221341201) 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, 294441 + ... + 333373.

It is an arithmetic number, because the mean of its divisors is an integer number (1666647738).

Almost surely, 2^12221341231 is an apocalyptic number.

12221341231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12221341231 is a deficient number, since it is larger than the sum of its proper divisors (1111840673).

12221341231 is a wasteful number, since it uses less digits than its factorization.

12221341231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67481.

The product of its digits is 576, while the sum is 22.

Adding to 12221341231 its reverse (13214312221), we get a palindrome (25435653452).

The spelling of 12221341231 in words is "twelve billion, two hundred twenty-one million, three hundred forty-one thousand, two hundred thirty-one".