111020200212120 has 512 divisors, whose sum is σ = 352385974886400. Its totient is φ = 27958887936000.

The previous prime is 111020200212091. The next prime is 111020200212137. The reversal of 111020200212120 is 21212002020111.

It is a super-3 number, since 3×111020200212120³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111020200212120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3045719895 + ... + 3045756345.

It is an arithmetic number, because the mean of its divisors is an integer number (688253857200).

Almost surely, 2^{111020200212120} is an apocalyptic number.

111020200212120 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 111020200212120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176192987443200).

111020200212120 is an abundant number, since it is smaller than the sum of its proper divisors (241365774674280).

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

111020200212120 is a wasteful number, since it uses less digits than its factorization.

111020200212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36751 (or 36747 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111020200212120 its reverse (21212002020111), we get a palindrome (132232202232231).

The spelling of 111020200212120 in words is "one hundred eleven trillion, twenty billion, two hundred million, two hundred twelve thousand, one hundred twenty".