12212011222211 has 2 divisors, whose sum is σ = 12212011222212. Its totient is φ = 12212011222210.

The previous prime is 12212011222121. The next prime is 12212011222223. The reversal of 12212011222211 is 11222211021221.

Together with previous prime (12212011222121) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12212011222211 - 2³⁰ = 12210937480387 is a prime.

It is not a weakly prime, because it can be changed into another prime (12212011228211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106005611105 + 6106005611106.

It is an arithmetic number, because the mean of its divisors is an integer number (6106005611106).

Almost surely, 2^{12212011222211} is an apocalyptic number.

12212011222211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212011222211 is an equidigital number, since it uses as much as digits as its factorization.

12212011222211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12212011222211 its reverse (11222211021221), we get a palindrome (23434222243432).

The spelling of 12212011222211 in words is "twelve trillion, two hundred twelve billion, eleven million, two hundred twenty-two thousand, two hundred eleven".