122222211111113 has 2 divisors, whose sum is σ = 122222211111114. Its totient is φ = 122222211111112.

The previous prime is 122222211111101. The next prime is 122222211111167. The reversal of 122222211111113 is 311111112222221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117162374760649 + 5059836350464 = 10824157^2 + 2249408^2 .

It is a cyclic number.

It is not a de Polignac number, because 122222211111113 - 2⁴⁶ = 51853466933449 is a prime.

It is not a weakly prime, because it can be changed into another prime (122222211111193) 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, 61111105555556 + 61111105555557.

It is an arithmetic number, because the mean of its divisors is an integer number (61111105555557).

Almost surely, 2^{122222211111113} is an apocalyptic number.

It is an amenable number.

122222211111113 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222211111113 is an equidigital number, since it uses as much as digits as its factorization.

122222211111113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 23.

Adding to 122222211111113 its reverse (311111112222221), we get a palindrome (433333323333334).

The spelling of 122222211111113 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand, one hundred thirteen".