22315201 has 2 divisors, whose sum is σ = 22315202. Its totient is φ = 22315200.

The previous prime is 22315187. The next prime is 22315207. The reversal of 22315201 is 10251322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13315201 + 9000000 = 3649^2 + 3000^2 .

It is a cyclic number.

It is not a de Polignac number, because 22315201 - 2¹¹ = 22313153 is a prime.

It is a super-3 number, since 3×22315201³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22315207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11157600 + 11157601.

It is an arithmetic number, because the mean of its divisors is an integer number (11157601).

Almost surely, 2^22315201 is an apocalyptic number.

It is an amenable number.

22315201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22315201 is an equidigital number, since it uses as much as digits as its factorization.

22315201 is an evil number, because the sum of its binary digits is even.

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

The square root of 22315201 is about 4723.8968024291. The cubic root of 22315201 is about 281.5357828627.

Adding to 22315201 its reverse (10251322), we get a palindrome (32566523).

The spelling of 22315201 in words is "twenty-two million, three hundred fifteen thousand, two hundred one".