6216420011 has 2 divisors, whose sum is σ = 6216420012. Its totient is φ = 6216420010.

The previous prime is 6216419999. The next prime is 6216420017. The reversal of 6216420011 is 1100246126.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6216420011 - 2²² = 6212225707 is a prime.

It is a super-2 number, since 2×6216420011² = 77287755506322480242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6216420017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3108210005 + 3108210006.

It is an arithmetic number, because the mean of its divisors is an integer number (3108210006).

Almost surely, 2^6216420011 is an apocalyptic number.

6216420011 is a deficient number, since it is larger than the sum of its proper divisors (1).

6216420011 is an equidigital number, since it uses as much as digits as its factorization.

6216420011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 6216420011 is about 78844.2769704942. The cubic root of 6216420011 is about 1838.7108971411.

Adding to 6216420011 its reverse (1100246126), we get a palindrome (7316666137).

The spelling of 6216420011 in words is "six billion, two hundred sixteen million, four hundred twenty thousand, eleven".