210221010102 has 8 divisors (see below), whose sum is σ = 420442020216. Its totient is φ = 70073670032.

The previous prime is 210221010067. The next prime is 210221010127. The reversal of 210221010102 is 201010122012.

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

210221010102 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17518417503 + ... + 17518417514.

It is an arithmetic number, because the mean of its divisors is an integer number (52555252527).

Almost surely, 2^210221010102 is an apocalyptic number.

210221010102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210221010102 is a wasteful number, since it uses less digits than its factorization.

210221010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35036835022.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210221010102 its reverse (201010122012), we get a palindrome (411231132114).

The spelling of 210221010102 in words is "two hundred ten billion, two hundred twenty-one million, ten thousand, one hundred two".