122011102111 has 2 divisors, whose sum is σ = 122011102112. Its totient is φ = 122011102110.

The previous prime is 122011102039. The next prime is 122011102139. The reversal of 122011102111 is 111201110221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122011102111 - 2¹⁵ = 122011069343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122011102091 and 122011102100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122011102141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005551055 + 61005551056.

It is an arithmetic number, because the mean of its divisors is an integer number (61005551056).

Almost surely, 2^122011102111 is an apocalyptic number.

122011102111 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011102111 is an equidigital number, since it uses as much as digits as its factorization.

122011102111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 122011102111 its reverse (111201110221), we get a palindrome (233212212332).

The spelling of 122011102111 in words is "one hundred twenty-two billion, eleven million, one hundred two thousand, one hundred eleven".