22516201 has 2 divisors, whose sum is σ = 22516202. Its totient is φ = 22516200.

The previous prime is 22516189. The next prime is 22516213. The reversal of 22516201 is 10261522.

It is a balanced prime because it is at equal distance from previous prime (22516189) and next prime (22516213).

It can be written as a sum of positive squares in only one way, i.e., 22080601 + 435600 = 4699^2 + 660^2 .

It is a cyclic number.

It is not a de Polignac number, because 22516201 - 2¹³ = 22508009 is a prime.

It is not a weakly prime, because it can be changed into another prime (22516001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11258100 + 11258101.

It is an arithmetic number, because the mean of its divisors is an integer number (11258101).

Almost surely, 2^22516201 is an apocalyptic number.

It is an amenable number.

22516201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22516201 is an equidigital number, since it uses as much as digits as its factorization.

22516201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 22516201 is about 4745.1239182976. The cubic root of 22516201 is about 282.3785511842.

Adding to 22516201 its reverse (10261522), we get a palindrome (32777723).

The spelling of 22516201 in words is "twenty-two million, five hundred sixteen thousand, two hundred one".