22232219 has 2 divisors, whose sum is σ = 22232220. Its totient is φ = 22232218.

The previous prime is 22232201. The next prime is 22232233. The reversal of 22232219 is 91223222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22232219 is a prime.

It is a super-2 number, since 2×22232219² = 988543123327922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22232194 and 22232203.

It is not a weakly prime, because it can be changed into another prime (22232279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11116109 + 11116110.

It is an arithmetic number, because the mean of its divisors is an integer number (11116110).

Almost surely, 2^22232219 is an apocalyptic number.

22232219 is a deficient number, since it is larger than the sum of its proper divisors (1).

22232219 is an equidigital number, since it uses as much as digits as its factorization.

22232219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 22232219 is about 4715.1054070932. The cubic root of 22232219 is about 281.1863734918.

The spelling of 22232219 in words is "twenty-two million, two hundred thirty-two thousand, two hundred nineteen".