122102112020111 has 4 divisors (see below), whose sum is σ = 122103313169472. Its totient is φ = 122100910870752.

The previous prime is 122102112020087. The next prime is 122102112020129. The reversal of 122102112020111 is 111020211201221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122102112020111 - 2²² = 122102107825807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122102112020111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102112020191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600422186 + ... + 600625511.

It is an arithmetic number, because the mean of its divisors is an integer number (30525828292368).

Almost surely, 2^{122102112020111} is an apocalyptic number.

122102112020111 is a deficient number, since it is larger than the sum of its proper divisors (1201149361).

122102112020111 is a wasteful number, since it uses less digits than its factorization.

122102112020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201149360.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122102112020111 its reverse (111020211201221), we get a palindrome (233122323221332).

The spelling of 122102112020111 in words is "one hundred twenty-two trillion, one hundred two billion, one hundred twelve million, twenty thousand, one hundred eleven".