12213221131 has 8 divisors (see below), whose sum is σ = 12292600320. Its totient is φ = 12133896552.

The previous prime is 12213221117. The next prime is 12213221149. The reversal of 12213221131 is 13112231221.

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 12213221131 - 2¹⁹ = 12212696843 is a prime.

It is a super-3 number, since 3×12213221131³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12213221099 and 12213221108.

It is not an unprimeable number, because it can be changed into a prime (12213221231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496386 + ... + 520408.

It is an arithmetic number, because the mean of its divisors is an integer number (1536575040).

Almost surely, 2^12213221131 is an apocalyptic number.

12213221131 is a deficient number, since it is larger than the sum of its proper divisors (79379189).

12213221131 is a wasteful number, since it uses less digits than its factorization.

12213221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27305.

The product of its digits is 144, while the sum is 19.

Adding to 12213221131 its reverse (13112231221), we get a palindrome (25325452352).

The spelling of 12213221131 in words is "twelve billion, two hundred thirteen million, two hundred twenty-one thousand, one hundred thirty-one".