22601601 has 12 divisors (see below), whose sum is σ = 35614800. Its totient is φ = 13697880.

The previous prime is 22601597. The next prime is 22601611. The reversal of 22601601 is 10610622.

It is a happy number.

22601601 is a `hidden beast` number, since 2 + 2 + 60 + 1 + 601 = 666.

It is not a de Polignac number, because 22601601 - 2² = 22601597 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22601611) 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 11 ways as a sum of consecutive naturals, for example, 114051 + ... + 114248.

It is an arithmetic number, because the mean of its divisors is an integer number (2967900).

Almost surely, 2^22601601 is an apocalyptic number.

It is an amenable number.

22601601 is a deficient number, since it is larger than the sum of its proper divisors (13013199).

22601601 is a wasteful number, since it uses less digits than its factorization.

22601601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228316 (or 228313 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 22601601 is about 4754.1141130604. The cubic root of 22601601 is about 282.7351048823.

The spelling of 22601601 in words is "twenty-two million, six hundred one thousand, six hundred one".