122211111122211 has 8 divisors (see below), whose sum is σ = 167352152167504. Its totient is φ = 79272072079200.

The previous prime is 122211111122173. The next prime is 122211111122249. The reversal of 122211111122211 is 112221111112221.

It is an interprime number because it is at equal distance from previous prime (122211111122173) and next prime (122211111122249).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122211111122211 - 2⁶ = 122211111122147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122211111122291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550500500440 + ... + 550500500661.

It is an arithmetic number, because the mean of its divisors is an integer number (20919019020938).

Almost surely, 2^{122211111122211} is an apocalyptic number.

122211111122211 is a deficient number, since it is larger than the sum of its proper divisors (45141041045293).

122211111122211 is a wasteful number, since it uses less digits than its factorization.

122211111122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101001001141.

The product of its digits is 64, while the sum is 21.

Adding to 122211111122211 its reverse (112221111112221), we get a palindrome (234432222234432).

The spelling of 122211111122211 in words is "one hundred twenty-two trillion, two hundred eleven billion, one hundred eleven million, one hundred twenty-two thousand, two hundred eleven".