2211222200 has 48 divisors (see below), whose sum is σ = 5608469160. Its totient is φ = 804080000.

The previous prime is 2211222199. The next prime is 2211222203. The reversal of 2211222200 is 22221122.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211222203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 500351 + ... + 504750.

Almost surely, 2^2211222200 is an apocalyptic number.

2211222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211222200 is an abundant number, since it is smaller than the sum of its proper divisors (3397246960).

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

2211222200 is a wasteful number, since it uses less digits than its factorization.

2211222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005128 (or 1005119 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2211222200 is about 47023.6344830980. The cubic root of 2211222200 is about 1302.7991362779.

Adding to 2211222200 its reverse (22221122), we get a palindrome (2233443322).

It can be divided in two parts, 221122 and 2200, that added together give a palindrome (223322).

The spelling of 2211222200 in words is "two billion, two hundred eleven million, two hundred twenty-two thousand, two hundred".