22261117 has 4 divisors (see below), whose sum is σ = 22270780. Its totient is φ = 22251456.

The previous prime is 22261111. The next prime is 22261123. The reversal of 22261117 is 71116222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (22261111) and next prime (22261123).

It can be written as a sum of positive squares in 2 ways, for example, as 3024121 + 19236996 = 1739^2 + 4386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22261117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22261111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859 + ... + 6727.

It is an arithmetic number, because the mean of its divisors is an integer number (5567695).

Almost surely, 2^22261117 is an apocalyptic number.

It is an amenable number.

22261117 is a deficient number, since it is larger than the sum of its proper divisors (9663).

22261117 is an equidigital number, since it uses as much as digits as its factorization.

22261117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9662.

The product of its digits is 336, while the sum is 22.

The square root of 22261117 is about 4718.1688185142. The cubic root of 22261117 is about 281.3081517945.

Adding to 22261117 its reverse (71116222), we get a palindrome (93377339).

The spelling of 22261117 in words is "twenty-two million, two hundred sixty-one thousand, one hundred seventeen".