2212211200 has 60 divisors (see below), whose sum is σ = 5480957790. Its totient is φ = 884879360.

The previous prime is 2212211171. The next prime is 2212211213. The reversal of 2212211200 is 21122122.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 917362944 + 1294848256 = 30288^2 + 35984^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73615 + ... + 99214.

Almost surely, 2^2212211200 is an apocalyptic number.

2212211200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212211200 is an abundant number, since it is smaller than the sum of its proper divisors (3268746590).

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

2212211200 is an equidigital number, since it uses as much as digits as its factorization.

2212211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172857 (or 172836 counting only the distinct ones).

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

The square root of 2212211200 is about 47034.1492960168. The cubic root of 2212211200 is about 1302.9933390282.

Adding to 2212211200 its reverse (21122122), we get a palindrome (2233333322).

The spelling of 2212211200 in words is "two billion, two hundred twelve million, two hundred eleven thousand, two hundred".