22217113 has 4 divisors (see below), whose sum is σ = 23524020. Its totient is φ = 20910208.

The previous prime is 22217101. The next prime is 22217119. The reversal of 22217113 is 31171222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31171222 = 2 ⋅15585611.

It can be written as a sum of positive squares in 2 ways, for example, as 8139609 + 14077504 = 2853^2 + 3752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22217113 is a prime.

It is a super-2 number, since 2×22217113² = 987200220109538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22217119) 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, 653428 + ... + 653461.

It is an arithmetic number, because the mean of its divisors is an integer number (5881005).

Almost surely, 2^22217113 is an apocalyptic number.

It is an amenable number.

22217113 is a deficient number, since it is larger than the sum of its proper divisors (1306907).

22217113 is a wasteful number, since it uses less digits than its factorization.

22217113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306906.

The product of its digits is 168, while the sum is 19.

The square root of 22217113 is about 4713.5032619062. The cubic root of 22217113 is about 281.1226736912.

Adding to 22217113 its reverse (31171222), we get a palindrome (53388335).

The spelling of 22217113 in words is "twenty-two million, two hundred seventeen thousand, one hundred thirteen".