22117601 has 16 divisors (see below), whose sum is σ = 25594368. Its totient is φ = 18921600.

The previous prime is 22117597. The next prime is 22117621. The reversal of 22117601 is 10671122.

It is a cyclic number.

It is not a de Polignac number, because 22117601 - 2² = 22117597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22117621) 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 15 ways as a sum of consecutive naturals, for example, 11741 + ... + 13493.

It is an arithmetic number, because the mean of its divisors is an integer number (1599648).

Almost surely, 2^22117601 is an apocalyptic number.

It is an amenable number.

22117601 is a deficient number, since it is larger than the sum of its proper divisors (3476767).

22117601 is a wasteful number, since it uses less digits than its factorization.

22117601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 22117601 is about 4702.9353599640. The cubic root of 22117601 is about 280.7023227783.

Adding to 22117601 its reverse (10671122), we get a palindrome (32788723).

The spelling of 22117601 in words is "twenty-two million, one hundred seventeen thousand, six hundred one".