212211000210 has 128 divisors (see below), whose sum is σ = 558304358400. Its totient is φ = 51196006400.

The previous prime is 212211000191. The next prime is 212211000257. The reversal of 212211000210 is 12000112212.

It is a super-2 number, since 2×212211000210² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 63859609 + ... + 63862931.

It is an arithmetic number, because the mean of its divisors is an integer number (4361752800).

Almost surely, 2^212211000210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212211000210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279152179200).

212211000210 is an abundant number, since it is smaller than the sum of its proper divisors (346093358190).

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

212211000210 is a wasteful number, since it uses less digits than its factorization.

212211000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212211000210 its reverse (12000112212), we get a palindrome (224211112422).

The spelling of 212211000210 in words is "two hundred twelve billion, two hundred eleven million, two hundred ten", and thus it is an aban number.