22022133221 has 12 divisors (see below), whose sum is σ = 24221240736. Its totient is φ = 20007637320.

The previous prime is 22022133209. The next prime is 22022133227. The reversal of 22022133221 is 12233122022.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-22022133221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22022133193 and 22022133202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022133227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140936 + ... + 252798.

It is an arithmetic number, because the mean of its divisors is an integer number (2018436728).

Almost surely, 2^22022133221 is an apocalyptic number.

It is an amenable number.

22022133221 is a deficient number, since it is larger than the sum of its proper divisors (2199107515).

22022133221 is a wasteful number, since it uses less digits than its factorization.

22022133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113512 (or 113501 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22022133221 its reverse (12233122022), we get a palindrome (34255255243).

The spelling of 22022133221 in words is "twenty-two billion, twenty-two million, one hundred thirty-three thousand, two hundred twenty-one".