22422501 has 10 divisors (see below), whose sum is σ = 33495462. Its totient is φ = 14948280.

The previous prime is 22422487. The next prime is 22422503. The reversal of 22422501 is 10522422.

It can be written as a sum of positive squares in only one way, i.e., 15610401 + 6812100 = 3951^2 + 2610^2 .

It is not a de Polignac number, because 22422501 - 2⁶ = 22422437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22422503) 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 9 ways as a sum of consecutive naturals, for example, 138330 + ... + 138491.

Almost surely, 2^22422501 is an apocalyptic number.

It is an amenable number.

22422501 is a deficient number, since it is larger than the sum of its proper divisors (11072961).

22422501 is an equidigital number, since it uses as much as digits as its factorization.

22422501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276833 (or 276824 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 22422501 is about 4735.2403318100. The cubic root of 22422501 is about 281.9863053558.

Adding to 22422501 its reverse (10522422), we get a palindrome (32944923).

The spelling of 22422501 in words is "twenty-two million, four hundred twenty-two thousand, five hundred one".