111121220102202 has 48 divisors (see below), whose sum is σ = 249691720972512. Its totient is φ = 37038635015760.

The previous prime is 111121220102141. The next prime is 111121220102261. The reversal of 111121220102202 is 202201022121111.

111121220102202 is a `hidden beast` number, since 111 + 121 + 220 + 10 + 2 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4722552 + ... + 15637932.

It is an arithmetic number, because the mean of its divisors is an integer number (5201910853594).

Almost surely, 2^{111121220102202} is an apocalyptic number.

111121220102202 is an abundant number, since it is smaller than the sum of its proper divisors (138570500870310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111121220102202 is a wasteful number, since it uses less digits than its factorization.

111121220102202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10936345 (or 10936333 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111121220102202 its reverse (202201022121111), we get a palindrome (313322242223313).

The spelling of 111121220102202 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred twenty million, one hundred two thousand, two hundred two".