122212121212211 has 2 divisors, whose sum is σ = 122212121212212. Its totient is φ = 122212121212210.

The previous prime is 122212121212199. The next prime is 122212121212231. The reversal of 122212121212211 is 112212121212221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122212121212211 is a prime.

It is not a weakly prime, because it can be changed into another prime (122212121212231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106060606105 + 61106060606106.

It is an arithmetic number, because the mean of its divisors is an integer number (61106060606106).

Almost surely, 2^{122212121212211} is an apocalyptic number.

122212121212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212121212211 is an equidigital number, since it uses as much as digits as its factorization.

122212121212211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 256, while the sum is 23.

Adding to 122212121212211 its reverse (112212121212221), we get a palindrome (234424242424432).

The spelling of 122212121212211 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred twenty-one million, two hundred twelve thousand, two hundred eleven".