111121322202 has 64 divisors (see below), whose sum is σ = 269802316800. Its totient is φ = 33620966640.

The previous prime is 111121322183. The next prime is 111121322203. The reversal of 111121322202 is 202223121111.

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

It is not an unprimeable number, because it can be changed into a prime (111121322203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239749 + ... + 528887.

It is an arithmetic number, because the mean of its divisors is an integer number (4215661200).

Almost surely, 2^111121322202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111121322202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134901158400).

111121322202 is an abundant number, since it is smaller than the sum of its proper divisors (158680994598).

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

111121322202 is a wasteful number, since it uses less digits than its factorization.

111121322202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289808 (or 289802 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111121322202 its reverse (202223121111), we get a palindrome (313344443313).

The spelling of 111121322202 in words is "one hundred eleven billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred two".