22401322 has 4 divisors (see below), whose sum is σ = 33601986. Its totient is φ = 11200660.

The previous prime is 22401299. The next prime is 22401331. The reversal of 22401322 is 22310422.

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., 14055001 + 8346321 = 3749^2 + 2889^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22401296 and 22401305.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600329 + ... + 5600332.

Almost surely, 2^22401322 is an apocalyptic number.

22401322 is a deficient number, since it is larger than the sum of its proper divisors (11200664).

22401322 is a wasteful number, since it uses less digits than its factorization.

22401322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11200663.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22401322 is about 4733.0034861597. The cubic root of 22401322 is about 281.8974947264.

Adding to 22401322 its reverse (22310422), we get a palindrome (44711744).

The spelling of 22401322 in words is "twenty-two million, four hundred one thousand, three hundred twenty-two".