2211212200 has 48 divisors (see below), whose sum is σ = 5154670080. Its totient is φ = 882144960.

The previous prime is 2211212183. The next prime is 2211212279. The reversal of 2211212200 is 22121122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62167 + ... + 91033.

It is an arithmetic number, because the mean of its divisors is an integer number (107388960).

Almost surely, 2^2211212200 is an apocalyptic number.

2211212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2577335040).

2211212200 is an abundant number, since it is smaller than the sum of its proper divisors (2943457880).

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

2211212200 is a wasteful number, since it uses less digits than its factorization.

2211212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29266 (or 29257 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2211212200 is about 47023.5281534680. The cubic root of 2211212200 is about 1302.7971723548.

Adding to 2211212200 its reverse (22121122), we get a palindrome (2233333322).

The spelling of 2211212200 in words is "two billion, two hundred eleven million, two hundred twelve thousand, two hundred".