22261317 has 16 divisors (see below), whose sum is σ = 32997888. Its totient is φ = 13256640.

The previous prime is 22261301. The next prime is 22261321. The reversal of 22261317 is 71316222.

It is not a de Polignac number, because 22261317 - 2⁴ = 22261301 is a prime.

It is a super-4 number, since 4×22261317⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22261367) 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, 7998 + ... + 10415.

It is an arithmetic number, because the mean of its divisors is an integer number (2062368).

Almost surely, 2^22261317 is an apocalyptic number.

It is an amenable number.

22261317 is a deficient number, since it is larger than the sum of its proper divisors (10736571).

22261317 is a wasteful number, since it uses less digits than its factorization.

22261317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18460.

The product of its digits is 1008, while the sum is 24.

The square root of 22261317 is about 4718.1900131300. The cubic root of 22261317 is about 281.3089942419.

Adding to 22261317 its reverse (71316222), we get a palindrome (93577539).

It can be divided in two parts, 22261 and 317, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 22261317 in words is "twenty-two million, two hundred sixty-one thousand, three hundred seventeen".