12221002222211 has 2 divisors, whose sum is σ = 12221002222212. Its totient is φ = 12221002222210.

The previous prime is 12221002222183. The next prime is 12221002222223. The reversal of 12221002222211 is 11222220012221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221002222211 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221002222291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110501111105 + 6110501111106.

It is an arithmetic number, because the mean of its divisors is an integer number (6110501111106).

Almost surely, 2^{12221002222211} is an apocalyptic number.

12221002222211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221002222211 is an equidigital number, since it uses as much as digits as its factorization.

12221002222211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12221002222211 its reverse (11222220012221), we get a palindrome (23443222234432).

The spelling of 12221002222211 in words is "twelve trillion, two hundred twenty-one billion, two million, two hundred twenty-two thousand, two hundred eleven".