212101101001210 has 8 divisors (see below), whose sum is σ = 381781981802196. Its totient is φ = 84840440400480.

The previous prime is 212101101001201. The next prime is 212101101001217. The reversal of 212101101001210 is 12100101101212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 203980122829921 + 8120978171289 = 14282161^2 + 2849733^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212101101001217) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10605055050051 + ... + 10605055050070.

Almost surely, 2^{212101101001210} is an apocalyptic number.

212101101001210 is a deficient number, since it is larger than the sum of its proper divisors (169680880800986).

212101101001210 is a wasteful number, since it uses less digits than its factorization.

212101101001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21210110100128.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212101101001210 its reverse (12100101101212), we get a palindrome (224201202102422).

The spelling of 212101101001210 in words is "two hundred twelve trillion, one hundred one billion, one hundred one million, one thousand, two hundred ten".