210112221222200 has 144 divisors (see below), whose sum is σ = 536971052512440. Its totient is φ = 76402626361600.

The previous prime is 210112221222187. The next prime is 210112221222217. The reversal of 210112221222200 is 2222122211012.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1421264687 + ... + 1421412513.

Almost surely, 2^{210112221222200} is an apocalyptic number.

210112221222200 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 210112221222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268485526256220).

210112221222200 is an abundant number, since it is smaller than the sum of its proper divisors (326858831290240).

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

210112221222200 is a wasteful number, since it uses less digits than its factorization.

210112221222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206598 (or 206578 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 210112221222200 its reverse (2222122211012), we get a palindrome (212334343433212).

The spelling of 210112221222200 in words is "two hundred ten trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred".