22335561 has 16 divisors (see below), whose sum is σ = 33264000. Its totient is φ = 14811984.

The previous prime is 22335559. The next prime is 22335563. The reversal of 22335561 is 16553322.

It is an interprime number because it is at equal distance from previous prime (22335559) and next prime (22335563).

It is not a de Polignac number, because 22335561 - 2¹ = 22335559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22335563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3295 + ... + 7451.

It is an arithmetic number, because the mean of its divisors is an integer number (2079000).

Almost surely, 2^22335561 is an apocalyptic number.

It is an amenable number.

22335561 is a deficient number, since it is larger than the sum of its proper divisors (10928439).

22335561 is a wasteful number, since it uses less digits than its factorization.

22335561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4365 (or 4359 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 22335561 is about 4726.0513116131. The cubic root of 22335561 is about 281.6213796141.

Adding to 22335561 its reverse (16553322), we get a palindrome (38888883).

The spelling of 22335561 in words is "twenty-two million, three hundred thirty-five thousand, five hundred sixty-one".