22012322 has 4 divisors (see below), whose sum is σ = 33018486. Its totient is φ = 11006160.

The previous prime is 22012321. The next prime is 22012337. The reversal of 22012322 is 22321022.

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., 17648401 + 4363921 = 4201^2 + 2089^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22012297 and 22012306.

It is not an unprimeable number, because it can be changed into a prime (22012321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5503079 + ... + 5503082.

Almost surely, 2^22012322 is an apocalyptic number.

22012322 is a deficient number, since it is larger than the sum of its proper divisors (11006164).

22012322 is a wasteful number, since it uses less digits than its factorization.

22012322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11006163.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22012322 is about 4691.7291055644. The cubic root of 22012322 is about 280.2562365271.

Adding to 22012322 its reverse (22321022), we get a palindrome (44333344).

The spelling of 22012322 in words is "twenty-two million, twelve thousand, three hundred twenty-two".