210001222200 has 384 divisors, whose sum is σ = 823767275520. Its totient is φ = 42984691200.

The previous prime is 210001222199. The next prime is 210001222243. The reversal of 210001222200 is 2222100012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3061479 + ... + 3129321.

It is an arithmetic number, because the mean of its divisors is an integer number (2145227280).

Almost surely, 2^210001222200 is an apocalyptic number.

210001222200 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 210001222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411883637760).

210001222200 is an abundant number, since it is smaller than the sum of its proper divisors (613766053320).

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

210001222200 is a wasteful number, since it uses less digits than its factorization.

210001222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67947 (or 67938 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 210001222200 its reverse (2222100012), we get a palindrome (212223322212).

It can be divided in two parts, 2100012 and 22200, that added together give a palindrome (2122212).

The spelling of 210001222200 in words is "two hundred ten billion, one million, two hundred twenty-two thousand, two hundred".