212212202100210 has 96 divisors (see below), whose sum is σ = 594284945567040. Its totient is φ = 52228869116544.

The previous prime is 212212202100109. The next prime is 212212202100211. The reversal of 212212202100210 is 12001202212212.

It is a happy number.

212212202100210 is a `hidden beast` number, since 2 + 1 + 2 + 21 + 220 + 210 + 0 + 210 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (212212202100211) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 6192000 + ... + 21511979.

It is an arithmetic number, because the mean of its divisors is an integer number (6190468182990).

Almost surely, 2^{212212202100210} is an apocalyptic number.

212212202100210 is an abundant number, since it is smaller than the sum of its proper divisors (382072743466830).

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

212212202100210 is a wasteful number, since it uses less digits than its factorization.

212212202100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27710552 (or 27710549 counting only the distinct ones).

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

Adding to 212212202100210 its reverse (12001202212212), we get a palindrome (224213404312422).

The spelling of 212212202100210 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred two million, one hundred thousand, two hundred ten".