22699 has 2 divisors, whose sum is σ = 22700.
Its totient is φ = 22698.
The previous prime is 22697. The next prime is 22709. The reversal of 22699 is 99622.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 22699 - 21 = 22697 is a prime.
Together with 22697, it forms a pair of twin primes.
It is a plaindrome in base 10, base 12 and base 16.
It is a nialpdrome in base 13.
It is a zygodrome in base 12.
It is not a weakly prime, because it can be changed into another prime (22691) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11349 + 11350.
It is an arithmetic number, because the mean of its divisors is an integer number (11350).
222699 is an apocalyptic number.
22699 is a deficient number, since it is larger than the sum of its proper divisors (1).
22699 is an equidigital number, since it uses as much as digits as its factorization.
22699 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1944, while the sum is 28.
The square root of 22699 is about 150.6618730801.
The cubic root of 22699 is about 28.3140661012.
It can be divided in two parts, 2269 and 9, that added together give a triangular number (2278 = T67).
The spelling of 22699 in words is "twenty-two thousand, six hundred ninety-nine".