111212010011200 has 672 divisors, whose sum is σ = 331281836962560. Its totient is φ = 35895508992000.

The previous prime is 111212010011183. The next prime is 111212010011209. The reversal of 111212010011200 is 2110010212111.

It is a happy number.

It is a super-2 number, since 2×111212010011200² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111212010011209) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 67116480772 + ... + 67116482428.

Almost surely, 2^{111212010011200} is an apocalyptic number.

111212010011200 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 111212010011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165640918481280).

111212010011200 is an abundant number, since it is smaller than the sum of its proper divisors (220069826951360).

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

111212010011200 is a wasteful number, since it uses less digits than its factorization.

111212010011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503 (or 3488 counting only the distinct ones).

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

Adding to 111212010011200 its reverse (2110010212111), we get a palindrome (113322020223311).

The spelling of 111212010011200 in words is "one hundred eleven trillion, two hundred twelve billion, ten million, eleven thousand, two hundred".