2113211111200 has 72 divisors (see below), whose sum is σ = 5895859015872. Its totient is φ = 724529521920.

The previous prime is 2113211111177. The next prime is 2113211111213. The reversal of 2113211111200 is 21111123112.

It is a happy number.

It is a super-2 number, since 2×2113211111200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

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, 188673964 + ... + 188685163.

It is an arithmetic number, because the mean of its divisors is an integer number (81886930776).

Almost surely, 2^{2113211111200} is an apocalyptic number.

2113211111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113211111200 is an abundant number, since it is smaller than the sum of its proper divisors (3782647904672).

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

2113211111200 is a wasteful number, since it uses less digits than its factorization.

2113211111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377359154 (or 377359141 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 2113211111200 its reverse (21111123112), we get a palindrome (2134322234312).

The spelling of 2113211111200 in words is "two trillion, one hundred thirteen billion, two hundred eleven million, one hundred eleven thousand, two hundred".