23122219 has 2 divisors, whose sum is σ = 23122220. Its totient is φ = 23122218.

The previous prime is 23122217. The next prime is 23122241. The reversal of 23122219 is 91222132.

It is an a-pointer prime, because the next prime (23122241) can be obtained adding 23122219 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23122219 - 2¹ = 23122217 is a prime.

It is a super-2 number, since 2×23122219² = 1069274022967922, which contains 22 as substring.

Together with 23122217, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23122219.

It is not a weakly prime, because it can be changed into another prime (23122213) by changing a digit.

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 as a sum of consecutive naturals, namely, 11561109 + 11561110.

It is an arithmetic number, because the mean of its divisors is an integer number (11561110).

Almost surely, 2^23122219 is an apocalyptic number.

23122219 is a deficient number, since it is larger than the sum of its proper divisors (1).

23122219 is an equidigital number, since it uses as much as digits as its factorization.

23122219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 23122219 is about 4808.5568521127. The cubic root of 23122219 is about 284.8895396289.

The spelling of 23122219 in words is "twenty-three million, one hundred twenty-two thousand, two hundred nineteen".