12221382322 has 8 divisors (see below), whose sum is σ = 18337774572. Its totient is φ = 6108790800.

The previous prime is 12221382253. The next prime is 12221382323. The reversal of 12221382322 is 22328312221.

It can be written as a sum of positive squares in 2 ways, for example, as 11478765321 + 742617001 = 107139^2 + 27251^2 .

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

It is a super-2 number, since 2×12221382322² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12221382323) 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, 942129 + ... + 955012.

Almost surely, 2^12221382322 is an apocalyptic number.

12221382322 is a deficient number, since it is larger than the sum of its proper divisors (6116392250).

12221382322 is a wasteful number, since it uses less digits than its factorization.

12221382322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900364.

The product of its digits is 4608, while the sum is 28.

Adding to 12221382322 its reverse (22328312221), we get a palindrome (34549694543).

The spelling of 12221382322 in words is "twelve billion, two hundred twenty-one million, three hundred eighty-two thousand, three hundred twenty-two".