212210222100210 has 48 divisors (see below), whose sum is σ = 551747391511680. Its totient is φ = 56589309067680.

The previous prime is 212210222100199. The next prime is 212210222100229. The reversal of 212210222100210 is 12001222012212.

It is a happy number.

212210222100210 is a `hidden beast` number, since 2 + 1 + 221 + 0 + 22 + 210 + 0 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81727911 + ... + 84284469.

It is an arithmetic number, because the mean of its divisors is an integer number (11494737323160).

Almost surely, 2^{212210222100210} is an apocalyptic number.

212210222100210 is an abundant number, since it is smaller than the sum of its proper divisors (339537169411470).

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

212210222100210 is a wasteful number, since it uses less digits than its factorization.

212210222100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478863 (or 3478860 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212210222100210 its reverse (12001222012212), we get a palindrome (224211444112422).

The spelling of 212210222100210 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twenty-two million, one hundred thousand, two hundred ten".