216226301 has 4 divisors (see below), whose sum is σ = 218655900. Its totient is φ = 213796704.

The previous prime is 216226279. The next prime is 216226303. The reversal of 216226301 is 103622612.

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 87403801 + 128822500 = 9349^2 + 11350^2 .

It is a cyclic number.

It is not a de Polignac number, because 216226301 - 2⁶ = 216226237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216226303) 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, 1214666 + ... + 1214843.

It is an arithmetic number, because the mean of its divisors is an integer number (54663975).

Almost surely, 2^216226301 is an apocalyptic number.

It is an amenable number.

216226301 is a deficient number, since it is larger than the sum of its proper divisors (2429599).

216226301 is an equidigital number, since it uses as much as digits as its factorization.

216226301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429598.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 216226301 is about 14704.6353576007. The cubic root of 216226301 is about 600.2094648286.

Adding to 216226301 its reverse (103622612), we get a palindrome (319848913).

The spelling of 216226301 in words is "two hundred sixteen million, two hundred twenty-six thousand, three hundred one".