212021212201210 has 16 divisors (see below), whose sum is σ = 382005494956800. Its totient is φ = 84726859770576.

The previous prime is 212021212201133. The next prime is 212021212201213. The reversal of 212021212201210 is 12102212120212.

It is not an unprimeable number, because it can be changed into a prime (212021212201213) 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 7 ways as a sum of consecutive naturals, for example, 10203127830 + ... + 10203148609.

It is an arithmetic number, because the mean of its divisors is an integer number (23875343434800).

Almost surely, 2^{212021212201210} is an apocalyptic number.

212021212201210 is a deficient number, since it is larger than the sum of its proper divisors (169984282755590).

212021212201210 is a wasteful number, since it uses less digits than its factorization.

212021212201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20406277485.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212021212201210 its reverse (12102212120212), we get a palindrome (224123424321422).

The spelling of 212021212201210 in words is "two hundred twelve trillion, twenty-one billion, two hundred twelve million, two hundred one thousand, two hundred ten".