22113451 has 2 divisors, whose sum is σ = 22113452. Its totient is φ = 22113450.

The previous prime is 22113449. The next prime is 22113461. The reversal of 22113451 is 15431122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22113451 - 2¹ = 22113449 is a prime.

Together with 22113449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22113401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056725 + 11056726.

It is an arithmetic number, because the mean of its divisors is an integer number (11056726).

Almost surely, 2^22113451 is an apocalyptic number.

22113451 is a deficient number, since it is larger than the sum of its proper divisors (1).

22113451 is an equidigital number, since it uses as much as digits as its factorization.

22113451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 22113451 is about 4702.4941254615. The cubic root of 22113451 is about 280.6847653059.

Adding to 22113451 its reverse (15431122), we get a palindrome (37544573).

The spelling of 22113451 in words is "twenty-two million, one hundred thirteen thousand, four hundred fifty-one".