102110001020221 has 4 divisors (see below), whose sum is σ = 102259503218592. Its totient is φ = 101960498821852.

The previous prime is 102110001020189. The next prime is 102110001020257. The reversal of 102110001020221 is 122020100011201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102110001020221 - 2⁵ = 102110001020189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102110001020281) 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 3 ways as a sum of consecutive naturals, for example, 74751098161 + ... + 74751099526.

It is an arithmetic number, because the mean of its divisors is an integer number (25564875804648).

Almost surely, 2^{102110001020221} is an apocalyptic number.

It is an amenable number.

102110001020221 is a deficient number, since it is larger than the sum of its proper divisors (149502198371).

102110001020221 is an equidigital number, since it uses as much as digits as its factorization.

102110001020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149502198370.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102110001020221 its reverse (122020100011201), we get a palindrome (224130101031422).

The spelling of 102110001020221 in words is "one hundred two trillion, one hundred ten billion, one million, twenty thousand, two hundred twenty-one".