27222201 has 6 divisors (see below), whose sum is σ = 39320970. Its totient is φ = 18148128.

The previous prime is 27222199. The next prime is 27222233. The reversal of 27222201 is 10222272.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26010000 + 1212201 = 5100^2 + 1101^2 .

It is not a de Polignac number, because 27222201 - 2¹ = 27222199 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (27222241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1512336 + ... + 1512353.

It is an arithmetic number, because the mean of its divisors is an integer number (6553495).

Almost surely, 2^27222201 is an apocalyptic number.

It is an amenable number.

27222201 is a deficient number, since it is larger than the sum of its proper divisors (12098769).

27222201 is a wasteful number, since it uses less digits than its factorization.

27222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024695 (or 3024692 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 27222201 is about 5217.4899137420. The cubic root of 27222201 is about 300.8207193517.

Adding to 27222201 its reverse (10222272), we get a palindrome (37444473).

The spelling of 27222201 in words is "twenty-seven million, two hundred twenty-two thousand, two hundred one".