22381117 has 8 divisors (see below), whose sum is σ = 24760512. Its totient is φ = 20059200.

The previous prime is 22381111. The next prime is 22381123. The reversal of 22381117 is 71118322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22381111) and next prime (22381123).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22381117 - 2³ = 22381109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22381091 and 22381100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22381111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13548 + ... + 15109.

It is an arithmetic number, because the mean of its divisors is an integer number (3095064).

Almost surely, 2^22381117 is an apocalyptic number.

It is an amenable number.

22381117 is a deficient number, since it is larger than the sum of its proper divisors (2379395).

22381117 is a wasteful number, since it uses less digits than its factorization.

22381117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28739.

The product of its digits is 672, while the sum is 25.

The square root of 22381117 is about 4730.8685249117. The cubic root of 22381117 is about 281.8127162154.

Adding to 22381117 its reverse (71118322), we get a palindrome (93499439).

The spelling of 22381117 in words is "twenty-two million, three hundred eighty-one thousand, one hundred seventeen".