20222219 has 2 divisors, whose sum is σ = 20222220. Its totient is φ = 20222218.

The previous prime is 20222207. The next prime is 20222227. The reversal of 20222219 is 91222202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20222219 - 2⁸ = 20221963 is a prime.

It is a super-2 number, since 2×20222219² = 817876282567922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20222219.

It is not a weakly prime, because it can be changed into another prime (20222249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111109 + 10111110.

It is an arithmetic number, because the mean of its divisors is an integer number (10111110).

Almost surely, 2^20222219 is an apocalyptic number.

20222219 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222219 is an equidigital number, since it uses as much as digits as its factorization.

20222219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20222219 is about 4496.9121628068. The cubic root of 20222219 is about 272.4433863817.

The spelling of 20222219 in words is "twenty million, two hundred twenty-two thousand, two hundred nineteen".