1101200112120 has 256 divisors, whose sum is σ = 3460713984000. Its totient is φ = 280065945600.

The previous prime is 1101200112109. The next prime is 1101200112127. The reversal of 1101200112120 is 212110021011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1101200112096 and 1101200112105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101200112127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52530201 + ... + 52551159.

It is an arithmetic number, because the mean of its divisors is an integer number (13518414000).

Almost surely, 2^{1101200112120} is an apocalyptic number.

1101200112120 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 1101200112120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1730356992000).

1101200112120 is an abundant number, since it is smaller than the sum of its proper divisors (2359513871880).

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

1101200112120 is a wasteful number, since it uses less digits than its factorization.

1101200112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21254 (or 21250 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1101200112120 its reverse (212110021011), we get a palindrome (1313310133131).

The spelling of 1101200112120 in words is "one trillion, one hundred one billion, two hundred million, one hundred twelve thousand, one hundred twenty".