12221233322 has 4 divisors (see below), whose sum is σ = 18331849986. Its totient is φ = 6110616660.

The previous prime is 12221233313. The next prime is 12221233373. The reversal of 12221233322 is 22333212221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22333212221 = 23 ⋅971009227.

It can be written as a sum of positive squares in only one way, i.e., 10917951121 + 1303282201 = 104489^2 + 36101^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055308329 + ... + 3055308332.

Almost surely, 2^12221233322 is an apocalyptic number.

12221233322 is a deficient number, since it is larger than the sum of its proper divisors (6110616664).

12221233322 is an equidigital number, since it uses as much as digits as its factorization.

12221233322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110616663.

The product of its digits is 1728, while the sum is 23.

Adding to 12221233322 its reverse (22333212221), we get a palindrome (34554445543).

The spelling of 12221233322 in words is "twelve billion, two hundred twenty-one million, two hundred thirty-three thousand, three hundred twenty-two".