22251126 has 8 divisors (see below), whose sum is σ = 44502264. Its totient is φ = 7417040.

The previous prime is 22251107. The next prime is 22251127. The reversal of 22251126 is 62115222.

It is a happy number.

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

22251126 is an admirable number.

It is a super-2 number, since 2×22251126² = 990225216535752, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22251127) 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 in 3 ways as a sum of consecutive naturals, for example, 1854255 + ... + 1854266.

It is an arithmetic number, because the mean of its divisors is an integer number (5562783).

Almost surely, 2^22251126 is an apocalyptic number.

22251126 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.

22251126 is a wasteful number, since it uses less digits than its factorization.

22251126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708526.

The product of its digits is 480, while the sum is 21.

The square root of 22251126 is about 4717.1099202796. The cubic root of 22251126 is about 281.2660609100.

Adding to 22251126 its reverse (62115222), we get a palindrome (84366348).

The spelling of 22251126 in words is "twenty-two million, two hundred fifty-one thousand, one hundred twenty-six".