22400219 has 2 divisors, whose sum is σ = 22400220. Its totient is φ = 22400218.

The previous prime is 22400173. The next prime is 22400243. The reversal of 22400219 is 91200422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22400219 - 2²⁴ = 5623003 is a prime.

It is a super-2 number, since 2×22400219² = 1003539622495922, which contains 22 as substring.

It is a Sophie Germain prime.

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 22400219.

It is not a weakly prime, because it can be changed into another prime (22400249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11200109 + 11200110.

It is an arithmetic number, because the mean of its divisors is an integer number (11200110).

Almost surely, 2^22400219 is an apocalyptic number.

22400219 is a deficient number, since it is larger than the sum of its proper divisors (1).

22400219 is an equidigital number, since it uses as much as digits as its factorization.

22400219 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22400219 is about 4732.8869625209. The cubic root of 22400219 is about 281.8928679453.

The spelling of 22400219 in words is "twenty-two million, four hundred thousand, two hundred nineteen".