22272065 has 8 divisors (see below), whose sum is σ = 27348288. Its totient is φ = 17403120.

The previous prime is 22272059. The next prime is 22272071. The reversal of 22272065 is 56027222.

It is an interprime number because it is at equal distance from previous prime (22272059) and next prime (22272071).

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

It is not a de Polignac number, because 22272065 - 2⁴ = 22272049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51581 + ... + 52010.

It is an arithmetic number, because the mean of its divisors is an integer number (3418536).

Almost surely, 2^22272065 is an apocalyptic number.

It is an amenable number.

22272065 is a deficient number, since it is larger than the sum of its proper divisors (5076223).

22272065 is a wasteful number, since it uses less digits than its factorization.

22272065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103639.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 22272065 is about 4719.3288717783. The cubic root of 22272065 is about 281.3542599467.

Adding to 22272065 its reverse (56027222), we get a palindrome (78299287).

The spelling of 22272065 in words is "twenty-two million, two hundred seventy-two thousand, sixty-five".