111111200010 has 160 divisors (see below), whose sum is σ = 311963477760. Its totient is φ = 28339936128.

The previous prime is 111111199957. The next prime is 111111200021. The reversal of 111111200010 is 10002111111.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111111199965 and 111111200001.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2491327 + ... + 2535533.

It is an arithmetic number, because the mean of its divisors is an integer number (1949771736).

Almost surely, 2^111111200010 is an apocalyptic number.

111111200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111111200010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155981738880).

111111200010 is an abundant number, since it is smaller than the sum of its proper divisors (200852277750).

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

111111200010 is a wasteful number, since it uses less digits than its factorization.

111111200010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44362 (or 44353 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111111200010 its reverse (10002111111), we get a palindrome (121113311121).

It can be divided in two parts, 11111 and 1200010, that added together give a palindrome (1211121).

The spelling of 111111200010 in words is "one hundred eleven billion, one hundred eleven million, two hundred thousand, ten".