122102111221111 has 12 divisors (see below), whose sum is σ = 142631447499360. Its totient is φ = 104221048898400.

The previous prime is 122102111221091. The next prime is 122102111221157. The reversal of 122102111221111 is 111122111201221.

It is not a de Polignac number, because 122102111221111 - 2⁹ = 122102111220599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102111221171) 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 11 ways as a sum of consecutive naturals, for example, 5213125990 + ... + 5213149411.

It is an arithmetic number, because the mean of its divisors is an integer number (11885953958280).

Almost surely, 2^{122102111221111} is an apocalyptic number.

122102111221111 is a deficient number, since it is larger than the sum of its proper divisors (20529336278249).

122102111221111 is a wasteful number, since it uses less digits than its factorization.

122102111221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10426275654 (or 10426275647 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 122102111221111 its reverse (111122111201221), we get a palindrome (233224222422332).

The spelling of 122102111221111 in words is "one hundred twenty-two trillion, one hundred two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred eleven".