22616201 has 4 divisors (see below), whose sum is σ = 23396100. Its totient is φ = 21836304.

The previous prime is 22616183. The next prime is 22616207. The reversal of 22616201 is 10261622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7398400 + 15217801 = 2720^2 + 3901^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22616201 is a prime.

It is a super-2 number, since 2×22616201² = 1022985095344802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22616207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389906 + ... + 389963.

It is an arithmetic number, because the mean of its divisors is an integer number (5849025).

Almost surely, 2^22616201 is an apocalyptic number.

It is an amenable number.

22616201 is a deficient number, since it is larger than the sum of its proper divisors (779899).

22616201 is an equidigital number, since it uses as much as digits as its factorization.

22616201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779898.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 22616201 is about 4755.6493773196. The cubic root of 22616201 is about 282.7959714260.

Adding to 22616201 its reverse (10261622), we get a palindrome (32877823).

The spelling of 22616201 in words is "twenty-two million, six hundred sixteen thousand, two hundred one".