2021210102210 has 48 divisors (see below), whose sum is σ = 3978571663080. Its totient is φ = 738903859200.

The previous prime is 2021210102189. The next prime is 2021210102239. The reversal of 2021210102210 is 122010121202.

It can be written as a sum of positive squares in 12 ways, for example, as 55076110489 + 1966133991721 = 234683^2 + 1402189^2 .

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 23 ways as a sum of consecutive naturals, for example, 5750015 + ... + 6091394.

Almost surely, 2^{2021210102210} is an apocalyptic number.

2021210102210 is a deficient number, since it is larger than the sum of its proper divisors (1957361560870).

2021210102210 is a wasteful number, since it uses less digits than its factorization.

2021210102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11841543 (or 11841530 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2021210102210 its reverse (122010121202), we get a palindrome (2143220223412).

The spelling of 2021210102210 in words is "two trillion, twenty-one billion, two hundred ten million, one hundred two thousand, two hundred ten".