22222133221 has 16 divisors (see below), whose sum is σ = 23660409600. Its totient is φ = 20811384000.

The previous prime is 22222133203. The next prime is 22222133239. The reversal of 22222133221 is 12233122222.

It is an interprime number because it is at equal distance from previous prime (22222133203) and next prime (22222133239).

It is not a de Polignac number, because 22222133221 - 2²⁹ = 21685262309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22222133192 and 22222133201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222133251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1259700 + ... + 1277218.

It is an arithmetic number, because the mean of its divisors is an integer number (1478775600).

Almost surely, 2^22222133221 is an apocalyptic number.

It is an amenable number.

22222133221 is a deficient number, since it is larger than the sum of its proper divisors (1438276379).

22222133221 is a wasteful number, since it uses less digits than its factorization.

22222133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18300.

The product of its digits is 1152, while the sum is 22.

Adding to 22222133221 its reverse (12233122222), we get a palindrome (34455255443).

The spelling of 22222133221 in words is "twenty-two billion, two hundred twenty-two million, one hundred thirty-three thousand, two hundred twenty-one".