212210211210 has 192 divisors, whose sum is σ = 543047791104. Its totient is φ = 53038540800.

The previous prime is 212210211209. The next prime is 212210211263. The reversal of 212210211210 is 12112012212.

212210211210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212210211210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 280330152 + ... + 280330908.

It is an arithmetic number, because the mean of its divisors is an integer number (2828373912).

Almost surely, 2^212210211210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212210211210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271523895552).

212210211210 is an abundant number, since it is smaller than the sum of its proper divisors (330837579894).

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

212210211210 is a wasteful number, since it uses less digits than its factorization.

212210211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212210211210 its reverse (12112012212), we get a palindrome (224322223422).

It can be divided in two parts, 2122102 and 11210, that added together give a palindrome (2133312).

The spelling of 212210211210 in words is "two hundred twelve billion, two hundred ten million, two hundred eleven thousand, two hundred ten".