111020222202100 has 108 divisors (see below), whose sum is σ = 252224896256620. Its totient is φ = 42413026867200.

The previous prime is 111020222202089. The next prime is 111020222202103. The reversal of 111020222202100 is 1202222020111.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 29867443684 + 110990354758416 = 172822^2 + 10535196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020222202103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33379396 + ... + 36554404.

Almost surely, 2^{111020222202100} is an apocalyptic number.

111020222202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111020222202100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126112448128310).

111020222202100 is an abundant number, since it is smaller than the sum of its proper divisors (141204674054520).

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

111020222202100 is a wasteful number, since it uses less digits than its factorization.

111020222202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175730 (or 3175700 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 111020222202100 its reverse (1202222020111), we get a palindrome (112222444222211).

The spelling of 111020222202100 in words is "one hundred eleven trillion, twenty billion, two hundred twenty-two million, two hundred two thousand, one hundred".