12221140231 has 8 divisors (see below), whose sum is σ = 12526313184. Its totient is φ = 11916305280.

The previous prime is 12221140201. The next prime is 12221140273. The reversal of 12221140231 is 13204112221.

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 12221140231 - 2⁷ = 12221140103 is a prime.

It is a super-2 number, since 2×12221140231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221140199 and 12221140208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221140201) 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 7 ways as a sum of consecutive naturals, for example, 10486 + ... + 156691.

It is an arithmetic number, because the mean of its divisors is an integer number (1565789148).

Almost surely, 2^12221140231 is an apocalyptic number.

12221140231 is a deficient number, since it is larger than the sum of its proper divisors (305172953).

12221140231 is a wasteful number, since it uses less digits than its factorization.

12221140231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169001.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12221140231 its reverse (13204112221), we get a palindrome (25425252452).

The spelling of 12221140231 in words is "twelve billion, two hundred twenty-one million, one hundred forty thousand, two hundred thirty-one".