122220112111 has 2 divisors, whose sum is σ = 122220112112. Its totient is φ = 122220112110.

The previous prime is 122220112087. The next prime is 122220112117. The reversal of 122220112111 is 111211022221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122220112111 - 2⁹ = 122220111599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122220112117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110056055 + 61110056056.

It is an arithmetic number, because the mean of its divisors is an integer number (61110056056).

Almost surely, 2^122220112111 is an apocalyptic number.

122220112111 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220112111 is an equidigital number, since it uses as much as digits as its factorization.

122220112111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122220112111 its reverse (111211022221), we get a palindrome (233431134332).

The spelling of 122220112111 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred twelve thousand, one hundred eleven".