12216696211 has 2 divisors, whose sum is σ = 12216696212. Its totient is φ = 12216696210.

The previous prime is 12216696181. The next prime is 12216696221. The reversal of 12216696211 is 11269661221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12216696211 - 2¹¹ = 12216694163 is a prime.

It is not a weakly prime, because it can be changed into another prime (12216696221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6108348105 + 6108348106.

It is an arithmetic number, because the mean of its divisors is an integer number (6108348106).

Almost surely, 2^12216696211 is an apocalyptic number.

12216696211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12216696211 is an equidigital number, since it uses as much as digits as its factorization.

12216696211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The spelling of 12216696211 in words is "twelve billion, two hundred sixteen million, six hundred ninety-six thousand, two hundred eleven".