210101221021102 has 8 divisors (see below), whose sum is σ = 315182569086216. Its totient is φ = 105040364659032.

The previous prime is 210101221021093. The next prime is 210101221021103. The reversal of 210101221021102 is 201120122101012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101221021103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5122900128 + ... + 5122941139.

It is an arithmetic number, because the mean of its divisors is an integer number (39397821135777).

Almost surely, 2^{210101221021102} is an apocalyptic number.

210101221021102 is a deficient number, since it is larger than the sum of its proper divisors (105081348065114).

210101221021102 is a wasteful number, since it uses less digits than its factorization.

210101221021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10245851522.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210101221021102 its reverse (201120122101012), we get a palindrome (411221343122114).

The spelling of 210101221021102 in words is "two hundred ten trillion, one hundred one billion, two hundred twenty-one million, twenty-one thousand, one hundred two".