22381322 has 4 divisors (see below), whose sum is σ = 33571986. Its totient is φ = 11190660.

The previous prime is 22381321. The next prime is 22381339. The reversal of 22381322 is 22318322.

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

It can be written as a sum of positive squares in only one way, i.e., 13315201 + 9066121 = 3649^2 + 3011^2 .

It is not an unprimeable number, because it can be changed into a prime (22381321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5595329 + ... + 5595332.

Almost surely, 2^22381322 is an apocalyptic number.

22381322 is a deficient number, since it is larger than the sum of its proper divisors (11190664).

22381322 is a wasteful number, since it uses less digits than its factorization.

22381322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11190663.

The product of its digits is 1152, while the sum is 23.

The square root of 22381322 is about 4730.8901910740. The cubic root of 22381322 is about 281.8135766346.

Adding to 22381322 its reverse (22318322), we get a palindrome (44699644).

The spelling of 22381322 in words is "twenty-two million, three hundred eighty-one thousand, three hundred twenty-two".