2210121200 has 180 divisors, whose sum is σ = 6207029808. Its totient is φ = 740812800.

The previous prime is 2210121197. The next prime is 2210121203. The reversal of 2210121200 is 21210122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2210121197) and next prime (2210121203).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210121203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7865060 + ... + 7865340.

Almost surely, 2^2210121200 is an apocalyptic number.

2210121200 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 2210121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3103514904).

2210121200 is an abundant number, since it is smaller than the sum of its proper divisors (3996908608).

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

2210121200 is a wasteful number, since it uses less digits than its factorization.

2210121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2210121200 is about 47011.9261464578. The cubic root of 2210121200 is about 1302.5828727742.

Adding to 2210121200 its reverse (21210122), we get a palindrome (2231331322).

The spelling of 2210121200 in words is "two billion, two hundred ten million, one hundred twenty-one thousand, two hundred".