22529201 has 4 divisors (see below), whose sum is σ = 23306100. Its totient is φ = 21752304.

The previous prime is 22529197. The next prime is 22529203. The reversal of 22529201 is 10292522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10292522 = 2 ⋅5146261.

It can be written as a sum of positive squares in 2 ways, for example, as 7974976 + 14554225 = 2824^2 + 3815^2 .

It is a cyclic number.

It is not a de Polignac number, because 22529201 - 2² = 22529197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22529203) 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, 388406 + ... + 388463.

It is an arithmetic number, because the mean of its divisors is an integer number (5826525).

Almost surely, 2^22529201 is an apocalyptic number.

It is an amenable number.

22529201 is a deficient number, since it is larger than the sum of its proper divisors (776899).

22529201 is an equidigital number, since it uses as much as digits as its factorization.

22529201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776898.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 22529201 is about 4746.4935478730. The cubic root of 22529201 is about 282.4328856152.

The spelling of 22529201 in words is "twenty-two million, five hundred twenty-nine thousand, two hundred one".