22223601 has 6 divisors (see below), whose sum is σ = 32100770. Its totient is φ = 14815728.

The previous prime is 22223557. The next prime is 22223611. The reversal of 22223601 is 10632222.

It can be written as a sum of positive squares in only one way, i.e., 13133376 + 9090225 = 3624^2 + 3015^2 .

It is not a de Polignac number, because 22223601 - 2⁷ = 22223473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22223611) 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 in 5 ways as a sum of consecutive naturals, for example, 1234636 + ... + 1234653.

Almost surely, 2^22223601 is an apocalyptic number.

It is an amenable number.

22223601 is a deficient number, since it is larger than the sum of its proper divisors (9877169).

22223601 is a wasteful number, since it uses less digits than its factorization.

22223601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469295 (or 2469292 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 22223601 is about 4714.1914471095. The cubic root of 22223601 is about 281.1500361781.

Adding to 22223601 its reverse (10632222), we get a palindrome (32855823).

The spelling of 22223601 in words is "twenty-two million, two hundred twenty-three thousand, six hundred one".