111200012111020 has 48 divisors (see below), whose sum is σ = 267164853318720. Its totient is φ = 38085029259264.

The previous prime is 111200012111009. The next prime is 111200012111029. The reversal of 111200012111020 is 20111210002111.

It is a happy number.

It is a super-3 number, since 3×111200012111020³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (111200012111029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423713965 + ... + 423976324.

It is an arithmetic number, because the mean of its divisors is an integer number (5565934444140).

Almost surely, 2^{111200012111020} is an apocalyptic number.

111200012111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200012111020 is an abundant number, since it is smaller than the sum of its proper divisors (155964841207700).

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

111200012111020 is a wasteful number, since it uses less digits than its factorization.

111200012111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847691242 (or 847691240 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111200012111020 its reverse (20111210002111), we get a palindrome (131311222113131).

The spelling of 111200012111020 in words is "one hundred eleven trillion, two hundred billion, twelve million, one hundred eleven thousand, twenty".