2111011321200 has 60 divisors (see below), whose sum is σ = 6762272936088. Its totient is φ = 562936352000.

The previous prime is 2111011321189. The next prime is 2111011321267. The reversal of 2111011321200 is 21231101112.

It is a tau number, because it is divible by the number of its divisors (60).

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 2111011321200.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 879586851 + ... + 879589250.

Almost surely, 2^{2111011321200} is an apocalyptic number.

2111011321200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111011321200 is an abundant number, since it is smaller than the sum of its proper divisors (4651261614888).

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

2111011321200 is a wasteful number, since it uses less digits than its factorization.

2111011321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759176122 (or 1759176111 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 2111011321200 its reverse (21231101112), we get a palindrome (2132242422312).

The spelling of 2111011321200 in words is "two trillion, one hundred eleven billion, eleven million, three hundred twenty-one thousand, two hundred".