26221201 has 4 divisors (see below), whose sum is σ = 26238004. Its totient is φ = 26204400.

The previous prime is 26221199. The next prime is 26221229. The reversal of 26221201 is 10212262.

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 7290000 + 18931201 = 2700^2 + 4351^2 .

It is a cyclic number.

It is not a de Polignac number, because 26221201 - 2¹ = 26221199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26221231) 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, 5790 + ... + 9271.

It is an arithmetic number, because the mean of its divisors is an integer number (6559501).

Almost surely, 2^26221201 is an apocalyptic number.

It is an amenable number.

26221201 is a deficient number, since it is larger than the sum of its proper divisors (16803).

26221201 is a wasteful number, since it uses less digits than its factorization.

26221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16802.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 26221201 is about 5120.6641170848. The cubic root of 26221201 is about 297.0873727830.

Adding to 26221201 its reverse (10212262), we get a palindrome (36433463).

The spelling of 26221201 in words is "twenty-six million, two hundred twenty-one thousand, two hundred one".