2111111012200 has 24 divisors (see below), whose sum is σ = 4908333103830. Its totient is φ = 844444404800.

The previous prime is 2111111012177. The next prime is 2111111012209. The reversal of 2111111012200 is 22101111112.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 789848122756 + 1321262889444 = 888734^2 + 1149462^2 .

It is a super-3 number, since 3×2111111012200³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111111012209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5277777331 + ... + 5277777730.

Almost surely, 2^{2111111012200} is an apocalyptic number.

2111111012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111111012200 is an abundant number, since it is smaller than the sum of its proper divisors (2797222091630).

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

2111111012200 is a wasteful number, since it uses less digits than its factorization.

2111111012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10555555077 (or 10555555068 counting only the distinct ones).

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

Adding to 2111111012200 its reverse (22101111112), we get a palindrome (2133212123312).

The spelling of 2111111012200 in words is "two trillion, one hundred eleven billion, one hundred eleven million, twelve thousand, two hundred".