22226719 has 4 divisors (see below), whose sum is σ = 22239360. Its totient is φ = 22214080.

The previous prime is 22226681. The next prime is 22226741. The reversal of 22226719 is 91762222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22226719 - 2⁷ = 22226591 is a prime.

It is a super-2 number, since 2×22226719² = 988054075009922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22226779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3154 + ... + 7375.

It is an arithmetic number, because the mean of its divisors is an integer number (5559840).

Almost surely, 2^22226719 is an apocalyptic number.

22226719 is a deficient number, since it is larger than the sum of its proper divisors (12641).

22226719 is a wasteful number, since it uses less digits than its factorization.

22226719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12640.

The product of its digits is 6048, while the sum is 31.

The square root of 22226719 is about 4714.5221390932. The cubic root of 22226719 is about 281.1631841346.

The spelling of 22226719 in words is "twenty-two million, two hundred twenty-six thousand, seven hundred nineteen".