122001212111 has 4 divisors (see below), whose sum is σ = 122013052272. Its totient is φ = 121989371952.

The previous prime is 122001212089. The next prime is 122001212117. The reversal of 122001212111 is 111212100221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111212100221 = 8297 ⋅13403893.

It is a cyclic number.

It is not a de Polignac number, because 122001212111 - 2¹⁴ = 122001195727 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 (122001212117) 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, 5904611 + ... + 5925236.

It is an arithmetic number, because the mean of its divisors is an integer number (30503263068).

Almost surely, 2^122001212111 is an apocalyptic number.

122001212111 is a deficient number, since it is larger than the sum of its proper divisors (11840161).

122001212111 is a wasteful number, since it uses less digits than its factorization.

122001212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11840160.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122001212111 its reverse (111212100221), we get a palindrome (233213312332).

The spelling of 122001212111 in words is "one hundred twenty-two billion, one million, two hundred twelve thousand, one hundred eleven".