111201210122 has 32 divisors (see below), whose sum is σ = 172385319744. Its totient is φ = 53765913600.

The previous prime is 111201210121. The next prime is 111201210139. The reversal of 111201210122 is 221012102111.

It is a junction number, because it is equal to n+sod(n) for n = 111201210097 and 111201210106.

It is not an unprimeable number, because it can be changed into a prime (111201210121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20434922 + ... + 20440362.

It is an arithmetic number, because the mean of its divisors is an integer number (5387041242).

Almost surely, 2^111201210122 is an apocalyptic number.

111201210122 is a deficient number, since it is larger than the sum of its proper divisors (61184109622).

111201210122 is a wasteful number, since it uses less digits than its factorization.

111201210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7814.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111201210122 its reverse (221012102111), we get a palindrome (332213312233).

The spelling of 111201210122 in words is "one hundred eleven billion, two hundred one million, two hundred ten thousand, one hundred twenty-two".