111121120220122 has 8 divisors (see below), whose sum is σ = 167612862902400. Its totient is φ = 55250165919324.

The previous prime is 111121120220111. The next prime is 111121120220141. The reversal of 111121120220122 is 221022021121111.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 111121120220122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155197094922 + ... + 155197095637.

It is an arithmetic number, because the mean of its divisors is an integer number (20951607862800).

Almost surely, 2^{111121120220122} is an apocalyptic number.

111121120220122 is a deficient number, since it is larger than the sum of its proper divisors (56491742682278).

111121120220122 is a wasteful number, since it uses less digits than its factorization.

111121120220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310394190740.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111121120220122 its reverse (221022021121111), we get a palindrome (332143141341233).

The spelling of 111121120220122 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred twenty million, two hundred twenty thousand, one hundred twenty-two".