210021010102 has 8 divisors (see below), whose sum is σ = 315041467176. Its totient is φ = 105007187712.

The previous prime is 210021010097. The next prime is 210021010117. The reversal of 210021010102 is 201010120012.

210021010102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1578763 + ... + 1706614.

It is an arithmetic number, because the mean of its divisors is an integer number (39380183397).

Almost surely, 2^210021010102 is an apocalyptic number.

210021010102 is a deficient number, since it is larger than the sum of its proper divisors (105020457074).

210021010102 is a wasteful number, since it uses less digits than its factorization.

210021010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317342.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210021010102 its reverse (201010120012), we get a palindrome (411031130114).

The spelling of 210021010102 in words is "two hundred ten billion, twenty-one million, ten thousand, one hundred two".