22771 has 4 divisors (see below), whose sum is σ = 26032. Its totient is φ = 19512.

The previous prime is 22769. The next prime is 22777. The reversal of 22771 is 17722.

22771 = 54² + 55² + ... + 60².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17722 = 2 ⋅8861.

It is a cyclic number.

It is not a de Polignac number, because 22771 - 2¹ = 22769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22777) 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, 1620 + ... + 1633.

It is an arithmetic number, because the mean of its divisors is an integer number (6508).

2²²⁷⁷¹ is an apocalyptic number.

22771 is a deficient number, since it is larger than the sum of its proper divisors (3261).

22771 is an equidigital number, since it uses as much as digits as its factorization.

22771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260.

The product of its digits is 196, while the sum is 19.

The square root of 22771 is about 150.9006295547. The cubic root of 22771 is about 28.3439713994.

It can be divided in two parts, 2277 and 1, that added together give a triangular number (2278 = T₆₇).

The spelling of 22771 in words is "twenty-two thousand, seven hundred seventy-one", and thus it is an iban number.