210102111010221 has 8 divisors (see below), whose sum is σ = 280145020788960. Its totient is φ = 140063637619152.

The previous prime is 210102111010189. The next prime is 210102111010241. The reversal of 210102111010221 is 122010111201012.

It is a happy number.

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

It is not a de Polignac number, because 210102111010221 - 2⁵ = 210102111010189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210102111010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210102111010241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108986411 + ... + 1109175848.

It is an arithmetic number, because the mean of its divisors is an integer number (35018127598620).

Almost surely, 2^{210102111010221} is an apocalyptic number.

It is an amenable number.

210102111010221 is a deficient number, since it is larger than the sum of its proper divisors (70042909778739).

210102111010221 is a wasteful number, since it uses less digits than its factorization.

210102111010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218193835.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210102111010221 its reverse (122010111201012), we get a palindrome (332112222211233).

The spelling of 210102111010221 in words is "two hundred ten trillion, one hundred two billion, one hundred eleven million, ten thousand, two hundred twenty-one".