122001000111 has 24 divisors (see below), whose sum is σ = 186308694000. Its totient is φ = 76716761472.

The previous prime is 122001000049. The next prime is 122001000119. The reversal of 122001000111 is 111000100221.

It is a happy number.

It is not a de Polignac number, because 122001000111 - 2⁶ = 122001000047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 122001000093 and 122001000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001000119) 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, 1518606 + ... + 1596923.

It is an arithmetic number, because the mean of its divisors is an integer number (7762862250).

Almost surely, 2^122001000111 is an apocalyptic number.

122001000111 is a deficient number, since it is larger than the sum of its proper divisors (64307693889).

122001000111 is a wasteful number, since it uses less digits than its factorization.

122001000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115783 (or 3115780 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 122001000111 its reverse (111000100221), we get a palindrome (233001100332).

The spelling of 122001000111 in words is "one hundred twenty-two billion, one million, one hundred eleven", and thus it is an aban number.