22234451 has 2 divisors, whose sum is σ = 22234452. Its totient is φ = 22234450.

The previous prime is 22234417. The next prime is 22234463. The reversal of 22234451 is 15443222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22234451 - 2¹⁰ = 22233427 is a prime.

It is a super-2 number, since 2×22234451² = 988741622542802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22234481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11117225 + 11117226.

It is an arithmetic number, because the mean of its divisors is an integer number (11117226).

Almost surely, 2^22234451 is an apocalyptic number.

22234451 is a deficient number, since it is larger than the sum of its proper divisors (1).

22234451 is an equidigital number, since it uses as much as digits as its factorization.

22234451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 23.

The square root of 22234451 is about 4715.3420872721. The cubic root of 22234451 is about 281.1957830636.

Adding to 22234451 its reverse (15443222), we get a palindrome (37677673).

The spelling of 22234451 in words is "twenty-two million, two hundred thirty-four thousand, four hundred fifty-one".