2111222201200 has 60 divisors (see below), whose sum is σ = 5796812965840. Its totient is φ = 723847610880.

The previous prime is 2111222201177. The next prime is 2111222201227. The reversal of 2111222201200 is 21022221112.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377001165 + ... + 377006764.

Almost surely, 2^{2111222201200} is an apocalyptic number.

2111222201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111222201200 is an abundant number, since it is smaller than the sum of its proper divisors (3685590764640).

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

2111222201200 is a wasteful number, since it uses less digits than its factorization.

2111222201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754007954 (or 754007943 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2111222201200 its reverse (21022221112), we get a palindrome (2132244422312).

The spelling of 2111222201200 in words is "two trillion, one hundred eleven billion, two hundred twenty-two million, two hundred one thousand, two hundred".