22140322 has 4 divisors (see below), whose sum is σ = 33210486. Its totient is φ = 11070160.

The previous prime is 22140299. The next prime is 22140323. The reversal of 22140322 is 22304122.

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., 20529961 + 1610361 = 4531^2 + 1269^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22140296 and 22140305.

It is not an unprimeable number, because it can be changed into a prime (22140323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5535079 + ... + 5535082.

Almost surely, 2^22140322 is an apocalyptic number.

22140322 is a deficient number, since it is larger than the sum of its proper divisors (11070164).

22140322 is a wasteful number, since it uses less digits than its factorization.

22140322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070163.

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

The square root of 22140322 is about 4705.3503589000. The cubic root of 22140322 is about 280.7984099741.

Adding to 22140322 its reverse (22304122), we get a palindrome (44444444).

The spelling of 22140322 in words is "twenty-two million, one hundred forty thousand, three hundred twenty-two".