2001220211227 has 2 divisors, whose sum is σ = 2001220211228. Its totient is φ = 2001220211226.

The previous prime is 2001220211171. The next prime is 2001220211233. The reversal of 2001220211227 is 7221120221002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001220211227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001220211198 and 2001220211207.

It is not a weakly prime, because it can be changed into another prime (2001220271227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000610105613 + 1000610105614.

It is an arithmetic number, because the mean of its divisors is an integer number (1000610105614).

Almost surely, 2^{2001220211227} is an apocalyptic number.

2001220211227 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001220211227 is an equidigital number, since it uses as much as digits as its factorization.

2001220211227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 2001220211227 its reverse (7221120221002), we get a palindrome (9222340432229).

The spelling of 2001220211227 in words is "two trillion, one billion, two hundred twenty million, two hundred eleven thousand, two hundred twenty-seven".