22122426 has 8 divisors (see below), whose sum is σ = 44244864. Its totient is φ = 7374140.

The previous prime is 22122421. The next prime is 22122427. The reversal of 22122426 is 62422122.

It is a sphenic number, since it is the product of 3 distinct primes.

22122426 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22122421) 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, 1843530 + ... + 1843541.

It is an arithmetic number, because the mean of its divisors is an integer number (5530608).

Almost surely, 2^22122426 is an apocalyptic number.

22122426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22122426 is a wasteful number, since it uses less digits than its factorization.

22122426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687076.

The product of its digits is 768, while the sum is 21.

The square root of 22122426 is about 4703.4483094853. The cubic root of 22122426 is about 280.7227332232.

Adding to 22122426 its reverse (62422122), we get a palindrome (84544548).

The spelling of 22122426 in words is "twenty-two million, one hundred twenty-two thousand, four hundred twenty-six".