122111101112 has 96 divisors (see below), whose sum is σ = 312902215920. Its totient is φ = 43916060160.

The previous prime is 122111101111. The next prime is 122111101117. The reversal of 122111101112 is 211101111221.

122111101112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122111101112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111101111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1033133 + ... + 1145244.

Almost surely, 2^122111101112 is an apocalyptic number.

It is an amenable number.

122111101112 is an abundant number, since it is smaller than the sum of its proper divisors (190791114808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122111101112 is a wasteful number, since it uses less digits than its factorization.

122111101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178421 (or 2178410 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 122111101112 its reverse (211101111221), we get a palindrome (333212212333).

The spelling of 122111101112 in words is "one hundred twenty-two billion, one hundred eleven million, one hundred one thousand, one hundred twelve".