12221020333211 has 2 divisors, whose sum is σ = 12221020333212. Its totient is φ = 12221020333210.

The previous prime is 12221020333087. The next prime is 12221020333297. The reversal of 12221020333211 is 11233302012221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12221020333211 - 2¹⁸ = 12221020071067 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12221020833211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110510166605 + 6110510166606.

It is an arithmetic number, because the mean of its divisors is an integer number (6110510166606).

Almost surely, 2^{12221020333211} is an apocalyptic number.

12221020333211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221020333211 is an equidigital number, since it uses as much as digits as its factorization.

12221020333211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12221020333211 its reverse (11233302012221), we get a palindrome (23454322345432).

The spelling of 12221020333211 in words is "twelve trillion, two hundred twenty-one billion, twenty million, three hundred thirty-three thousand, two hundred eleven".