22132501 has 2 divisors, whose sum is σ = 22132502. Its totient is φ = 22132500.

The previous prime is 22132483. The next prime is 22132529. The reversal of 22132501 is 10523122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21846276 + 286225 = 4674^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 22132501 - 2⁷ = 22132373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22132301) 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, 11066250 + 11066251.

It is an arithmetic number, because the mean of its divisors is an integer number (11066251).

Almost surely, 2^22132501 is an apocalyptic number.

It is an amenable number.

22132501 is a deficient number, since it is larger than the sum of its proper divisors (1).

22132501 is an equidigital number, since it uses as much as digits as its factorization.

22132501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 22132501 is about 4704.5192102913. The cubic root of 22132501 is about 280.7653423580.

Adding to 22132501 its reverse (10523122), we get a palindrome (32655623).

The spelling of 22132501 in words is "twenty-two million, one hundred thirty-two thousand, five hundred one".