210221200220102 has 4 divisors (see below), whose sum is σ = 315331800330156. Its totient is φ = 105110600110050.

The previous prime is 210221200220093. The next prime is 210221200220167. The reversal of 210221200220102 is 201022002122012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52555300055024 + ... + 52555300055027.

It is an arithmetic number, because the mean of its divisors is an integer number (78832950082539).

Almost surely, 2^{210221200220102} is an apocalyptic number.

210221200220102 is a deficient number, since it is larger than the sum of its proper divisors (105110600110054).

210221200220102 is a wasteful number, since it uses less digits than its factorization.

210221200220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105110600110053.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 210221200220102 its reverse (201022002122012), we get a palindrome (411243202342114).

The spelling of 210221200220102 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred million, two hundred twenty thousand, one hundred two".