22221331133 has 4 divisors (see below), whose sum is σ = 22221671580. Its totient is φ = 22220990688.

The previous prime is 22221331109. The next prime is 22221331157. The reversal of 22221331133 is 33113312222.

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

It is an interprime number because it is at equal distance from previous prime (22221331109) and next prime (22221331157).

It can be written as a sum of positive squares in 2 ways, for example, as 8382867364 + 13838463769 = 91558^2 + 117637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22221331133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22221331099 and 22221331108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221331733) 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, 38168 + ... + 214241.

It is an arithmetic number, because the mean of its divisors is an integer number (5555417895).

Almost surely, 2^22221331133 is an apocalyptic number.

It is an amenable number.

22221331133 is a deficient number, since it is larger than the sum of its proper divisors (340447).

22221331133 is an equidigital number, since it uses as much as digits as its factorization.

22221331133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340446.

The product of its digits is 1296, while the sum is 23.

Adding to 22221331133 its reverse (33113312222), we get a palindrome (55334643355).

The spelling of 22221331133 in words is "twenty-two billion, two hundred twenty-one million, three hundred thirty-one thousand, one hundred thirty-three".