2122122200 has 72 divisors (see below), whose sum is σ = 5423311740. Its totient is φ = 771672000.

The previous prime is 2122122137. The next prime is 2122122221. The reversal of 2122122200 is 22212212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19646 + ... + 68045.

Almost surely, 2^2122122200 is an apocalyptic number.

2122122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122122200 is an abundant number, since it is smaller than the sum of its proper divisors (3301189540).

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

2122122200 is a wasteful number, since it uses less digits than its factorization.

2122122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87729 (or 87709 counting only the distinct ones).

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

The square root of 2122122200 is about 46066.4975877264. The cubic root of 2122122200 is about 1285.0601696807.

Adding to 2122122200 its reverse (22212212), we get a palindrome (2144334412).

It can be divided in two parts, 212212 and 2200, that added together give a palindrome (214412).

The spelling of 2122122200 in words is "two billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred".