122102111 has 2 divisors, whose sum is σ = 122102112. Its totient is φ = 122102110.

The previous prime is 122102107. The next prime is 122102119. The reversal of 122102111 is 111201221.

It is a weak prime.

It is an emirp because it is prime and its reverse (111201221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122102111 - 2² = 122102107 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 122102092 and 122102101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122102119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61051055 + 61051056.

It is an arithmetic number, because the mean of its divisors is an integer number (61051056).

Almost surely, 2^122102111 is an apocalyptic number.

122102111 is a deficient number, since it is larger than the sum of its proper divisors (1).

122102111 is an equidigital number, since it uses as much as digits as its factorization.

122102111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 122102111 is about 11049.9823981760. The cubic root of 122102111 is about 496.1058986835.

Adding to 122102111 its reverse (111201221), we get a palindrome (233303332).

The spelling of 122102111 in words is "one hundred twenty-two million, one hundred two thousand, one hundred eleven".