22224019 has 4 divisors (see below), whose sum is σ = 22393800. Its totient is φ = 22054240.

The previous prime is 22223989. The next prime is 22224023. The reversal of 22224019 is 91042222.

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 22224019 - 2¹¹ = 22221971 is a prime.

It is a super-2 number, since 2×22224019² = 987814041024722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22224079) 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, 84694 + ... + 84955.

It is an arithmetic number, because the mean of its divisors is an integer number (5598450).

Almost surely, 2^22224019 is an apocalyptic number.

22224019 is a deficient number, since it is larger than the sum of its proper divisors (169781).

22224019 is a wasteful number, since it uses less digits than its factorization.

22224019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169780.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 22224019 is about 4714.2357811208. The cubic root of 22224019 is about 281.1517988684.

It can be divided in two parts, 2222 and 4019, that added together give a square (6241 = 79²).

The spelling of 22224019 in words is "twenty-two million, two hundred twenty-four thousand, nineteen".