12222201331 has 4 divisors (see below), whose sum is σ = 12240692464. Its totient is φ = 12203710200.

The previous prime is 12222201287. The next prime is 12222201337. The reversal of 12222201331 is 13310222221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12222201331 - 2⁷ = 12222201203 is a prime.

It is a super-2 number, since 2×12222201331² (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 = 12222201299 and 12222201308.

It is not an unprimeable number, because it can be changed into a prime (12222201337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9244575 + ... + 9245896.

It is an arithmetic number, because the mean of its divisors is an integer number (3060173116).

Almost surely, 2^12222201331 is an apocalyptic number.

12222201331 is a deficient number, since it is larger than the sum of its proper divisors (18491133).

12222201331 is an equidigital number, since it uses as much as digits as its factorization.

12222201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18491132.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12222201331 its reverse (13310222221), we get a palindrome (25532423552).

The spelling of 12222201331 in words is "twelve billion, two hundred twenty-two million, two hundred one thousand, three hundred thirty-one".