2111133221200 has 60 divisors (see below), whose sum is σ = 5338944823360. Its totient is φ = 800008375680.

The previous prime is 2111133221173. The next prime is 2111133221201. The reversal of 2111133221200 is 21223311112.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111133221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138882744 + ... + 138897943.

Almost surely, 2^{2111133221200} is an apocalyptic number.

2111133221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111133221200 is an abundant number, since it is smaller than the sum of its proper divisors (3227811602160).

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

2111133221200 is a wasteful number, since it uses less digits than its factorization.

2111133221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277780724 (or 277780713 counting only the distinct ones).

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

Adding to 2111133221200 its reverse (21223311112), we get a palindrome (2132356532312).

The spelling of 2111133221200 in words is "two trillion, one hundred eleven billion, one hundred thirty-three million, two hundred twenty-one thousand, two hundred".