111111000121122 has 32 divisors (see below), whose sum is σ = 222309737395200. Its totient is φ = 37022377859280.

The previous prime is 111111000121117. The next prime is 111111000121127. The reversal of 111111000121122 is 221121000111111.

It is an interprime number because it is at equal distance from previous prime (111111000121117) and next prime (111111000121127).

It is not an unprimeable number, because it can be changed into a prime (111111000121127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197386547 + ... + 1197479337.

It is an arithmetic number, because the mean of its divisors is an integer number (6947179293600).

Almost surely, 2^{111111000121122} is an apocalyptic number.

111111000121122 is an abundant number, since it is smaller than the sum of its proper divisors (111198737274078).

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

111111000121122 is a wasteful number, since it uses less digits than its factorization.

111111000121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169438.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111111000121122 its reverse (221121000111111), we get a palindrome (332232000232233).

The spelling of 111111000121122 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twenty-one thousand, one hundred twenty-two".