111200110110020 has 12 divisors (see below), whose sum is σ = 233520231231084. Its totient is φ = 44480044044000.

The previous prime is 111200110109989. The next prime is 111200110110029. The reversal of 111200110110020 is 20011011002111.

It can be written as a sum of positive squares in 2 ways, for example, as 12457850266624 + 98742259843396 = 3529568^2 + 9936914^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111200110109983 and 111200110110010.

It is not an unprimeable number, because it can be changed into a prime (111200110110029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780002752731 + ... + 2780002752770.

It is an arithmetic number, because the mean of its divisors is an integer number (19460019269257).

Almost surely, 2^{111200110110020} is an apocalyptic number.

111200110110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200110110020 is an abundant number, since it is smaller than the sum of its proper divisors (122320121121064).

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

111200110110020 is a wasteful number, since it uses less digits than its factorization.

111200110110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560005505510 (or 5560005505508 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111200110110020 its reverse (20011011002111), we get a palindrome (131211121112131).

The spelling of 111200110110020 in words is "one hundred eleven trillion, two hundred billion, one hundred ten million, one hundred ten thousand, twenty".