22126501 has 2 divisors, whose sum is σ = 22126502. Its totient is φ = 22126500.

The previous prime is 22126499. The next prime is 22126541. The reversal of 22126501 is 10562122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18792225 + 3334276 = 4335^2 + 1826^2 .

It is a cyclic number.

It is not a de Polignac number, because 22126501 - 2¹ = 22126499 is a prime.

Together with 22126499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22126541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11063250 + 11063251.

It is an arithmetic number, because the mean of its divisors is an integer number (11063251).

Almost surely, 2^22126501 is an apocalyptic number.

It is an amenable number.

22126501 is a deficient number, since it is larger than the sum of its proper divisors (1).

22126501 is an equidigital number, since it uses as much as digits as its factorization.

22126501 is an evil number, because the sum of its binary digits is even.

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

The square root of 22126501 is about 4703.8814823505. The cubic root of 22126501 is about 280.7399687486.

Adding to 22126501 its reverse (10562122), we get a palindrome (32688623).

The spelling of 22126501 in words is "twenty-two million, one hundred twenty-six thousand, five hundred one".