511216201 has 2 divisors, whose sum is σ = 511216202. Its totient is φ = 511216200.

The previous prime is 511216187. The next prime is 511216243. The reversal of 511216201 is 102612115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411116176 + 100100025 = 20276^2 + 10005^2 .

It is a cyclic number.

It is not a de Polignac number, because 511216201 - 2¹⁵ = 511183433 is a prime.

It is a super-2 number, since 2×511216201² = 522684008329744802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (511216001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255608100 + 255608101.

It is an arithmetic number, because the mean of its divisors is an integer number (255608101).

Almost surely, 2^511216201 is an apocalyptic number.

It is an amenable number.

511216201 is a deficient number, since it is larger than the sum of its proper divisors (1).

511216201 is an equidigital number, since it uses as much as digits as its factorization.

511216201 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 19.

The square root of 511216201 is about 22610.0906897783. The cubic root of 511216201 is about 799.5915628635.

Adding to 511216201 its reverse (102612115), we get a palindrome (613828316).

The spelling of 511216201 in words is "five hundred eleven million, two hundred sixteen thousand, two hundred one".