201211121227 has 2 divisors, whose sum is σ = 201211121228. Its totient is φ = 201211121226.

The previous prime is 201211121179. The next prime is 201211121239. The reversal of 201211121227 is 722121112102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201211121227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201211121198 and 201211121207.

It is not a weakly prime, because it can be changed into another prime (201211121327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605560613 + 100605560614.

It is an arithmetic number, because the mean of its divisors is an integer number (100605560614).

Almost surely, 2^201211121227 is an apocalyptic number.

201211121227 is a deficient number, since it is larger than the sum of its proper divisors (1).

201211121227 is an equidigital number, since it uses as much as digits as its factorization.

201211121227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 201211121227 its reverse (722121112102), we get a palindrome (923332233329).

The spelling of 201211121227 in words is "two hundred one billion, two hundred eleven million, one hundred twenty-one thousand, two hundred twenty-seven".