22000027 has 4 divisors (see below), whose sum is σ = 25142896. Its totient is φ = 18857160.

The previous prime is 22000021. The next prime is 22000031. The reversal of 22000027 is 72000022.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-22000027 is a prime.

It is a Duffinian number.

22000027 is a modest number, since divided by 27 gives 22 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 21999980 and 22000016.

It is not an unprimeable number, because it can be changed into a prime (22000021) 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, 1571424 + ... + 1571437.

It is an arithmetic number, because the mean of its divisors is an integer number (6285724).

Almost surely, 2^22000027 is an apocalyptic number.

22000027 is a deficient number, since it is larger than the sum of its proper divisors (3142869).

22000027 is an equidigital number, since it uses as much as digits as its factorization.

22000027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142868.

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 22000027 is about 4690.4186380322. The cubic root of 22000027 is about 280.2040476944.

Adding to 22000027 its reverse (72000022), we get a palindrome (94000049).

The spelling of 22000027 in words is "twenty-two million, twenty-seven", and thus it is an aban number and an uban number.