2212222200 has 48 divisors (see below), whose sum is σ = 6857890680. Its totient is φ = 589925760.

The previous prime is 2212222153. The next prime is 2212222213. The reversal of 2212222200 is 22222122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2212222200.

It is a congruent 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, 1842919 + ... + 1844118.

Almost surely, 2^2212222200 is an apocalyptic number.

2212222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212222200 is an abundant number, since it is smaller than the sum of its proper divisors (4645668480).

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

2212222200 is a wasteful number, since it uses less digits than its factorization.

2212222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687056 (or 3687047 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2212222200 is about 47034.2662321844. The cubic root of 2212222200 is about 1302.9954986929.

Adding to 2212222200 its reverse (22222122), we get a palindrome (2234444322).

The spelling of 2212222200 in words is "two billion, two hundred twelve million, two hundred twenty-two thousand, two hundred".