2111212331200 has 168 divisors, whose sum is σ = 5941628179712. Its totient is φ = 723283706880.

The previous prime is 2111212331191. The next prime is 2111212331227. The reversal of 2111212331200 is 21332121112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14521267 + ... + 14665933.

Almost surely, 2^{2111212331200} is an apocalyptic number.

2111212331200 is a gapful number since it is divisible by the number (20) 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 2111212331200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2970814089856).

2111212331200 is an abundant number, since it is smaller than the sum of its proper divisors (3830415848512).

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

2111212331200 is a wasteful number, since it uses less digits than its factorization.

2111212331200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145999 (or 145984 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2111212331200 its reverse (21332121112), we get a palindrome (2132544452312).

The spelling of 2111212331200 in words is "two trillion, one hundred eleven billion, two hundred twelve million, three hundred thirty-one thousand, two hundred".