210101212021210 has 32 divisors (see below), whose sum is σ = 399379401912960. Its totient is φ = 79418038020288.

The previous prime is 210101212021199. The next prime is 210101212021231. The reversal of 210101212021210 is 12120212101012.

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 15 ways as a sum of consecutive naturals, for example, 5502893745 + ... + 5502931924.

It is an arithmetic number, because the mean of its divisors is an integer number (12480606309780).

Almost surely, 2^{210101212021210} is an apocalyptic number.

210101212021210 is a deficient number, since it is larger than the sum of its proper divisors (189278189891750).

210101212021210 is a wasteful number, since it uses less digits than its factorization.

210101212021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11005825782.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210101212021210 its reverse (12120212101012), we get a palindrome (222221424122222).

The spelling of 210101212021210 in words is "two hundred ten trillion, one hundred one billion, two hundred twelve million, twenty-one thousand, two hundred ten".