111131021122 has 8 divisors (see below), whose sum is σ = 181850761872. Its totient is φ = 50514100500.

The previous prime is 111131021101. The next prime is 111131021161. The reversal of 111131021122 is 221120131111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 111131021096 and 111131021105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525705004 + ... + 2525705047.

It is an arithmetic number, because the mean of its divisors is an integer number (22731345234).

Almost surely, 2^111131021122 is an apocalyptic number.

111131021122 is a deficient number, since it is larger than the sum of its proper divisors (70719740750).

111131021122 is a wasteful number, since it uses less digits than its factorization.

111131021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051410064.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111131021122 its reverse (221120131111), we get a palindrome (332251152233).

The spelling of 111131021122 in words is "one hundred eleven billion, one hundred thirty-one million, twenty-one thousand, one hundred twenty-two".