1201200020112 has 20 divisors (see below), whose sum is σ = 3103100052080. Its totient is φ = 400400006688.

The previous prime is 1201200020089. The next prime is 1201200020123. The reversal of 1201200020112 is 2110200021021.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12512500162 + ... + 12512500257.

It is an arithmetic number, because the mean of its divisors is an integer number (155155002604).

Almost surely, 2^{1201200020112} is an apocalyptic number.

1201200020112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201200020112 is an abundant number, since it is smaller than the sum of its proper divisors (1901900031968).

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

1201200020112 is a wasteful number, since it uses less digits than its factorization.

1201200020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25025000430 (or 25025000424 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1201200020112 its reverse (2110200021021), we get a palindrome (3311400041133).

Subtracting 1201200020112 from its reverse (2110200021021), we obtain a palindrome (909000000909).

The spelling of 1201200020112 in words is "one trillion, two hundred one billion, two hundred million, twenty thousand, one hundred twelve".