111002212211121 has 48 divisors (see below), whose sum is σ = 200251406759040. Its totient is φ = 57562144853760.

The previous prime is 111002212211087. The next prime is 111002212211153. The reversal of 111002212211121 is 121112212200111.

It is a happy number.

111002212211121 is a `hidden beast` number, since 1 + 1 + 100 + 221 + 221 + 1 + 121 = 666.

It is not a de Polignac number, because 111002212211121 - 2¹¹ = 111002212209073 is a prime.

It is a super-2 number, since 2×111002212211121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111002212211094 and 111002212211103.

It is not an unprimeable number, because it can be changed into a prime (111002212211161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140358190 + ... + 141146823.

It is an arithmetic number, because the mean of its divisors is an integer number (4171904307480).

Almost surely, 2^{111002212211121} is an apocalyptic number.

111002212211121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111002212211121 is a deficient number, since it is larger than the sum of its proper divisors (89249194547919).

111002212211121 is a wasteful number, since it uses less digits than its factorization.

111002212211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281505606 (or 281505603 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111002212211121 its reverse (121112212200111), we get a palindrome (232114424411232).

The spelling of 111002212211121 in words is "one hundred eleven trillion, two billion, two hundred twelve million, two hundred eleven thousand, one hundred twenty-one".