111000121211121 has 16 divisors (see below), whose sum is σ = 149042972347008. Its totient is φ = 73479087792000.

The previous prime is 111000121211051. The next prime is 111000121211131. The reversal of 111000121211121 is 121112121000111.

It is not a de Polignac number, because 111000121211121 - 2¹¹ = 111000121209073 is a prime.

It is a super-3 number, since 3×111000121211121³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111000121211121.

It is not an unprimeable number, because it can be changed into a prime (111000121211131) 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, 50465790 + ... + 52619351.

It is an arithmetic number, because the mean of its divisors is an integer number (9315185771688).

Almost surely, 2^{111000121211121} is an apocalyptic number.

It is an amenable number.

111000121211121 is a deficient number, since it is larger than the sum of its proper divisors (38042851135887).

111000121211121 is a wasteful number, since it uses less digits than its factorization.

111000121211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103087672.

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

Adding to 111000121211121 its reverse (121112121000111), we get a palindrome (232112242211232).

The spelling of 111000121211121 in words is "one hundred eleven trillion, one hundred twenty-one million, two hundred eleven thousand, one hundred twenty-one".