201102102010221 has 4 divisors (see below), whose sum is σ = 268136136013632. Its totient is φ = 134068068006812.

The previous prime is 201102102010211. The next prime is 201102102010241. The reversal of 201102102010221 is 122010201201102.

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 201102102010221 - 2¹⁰ = 201102102009197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201102102010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102102010211) 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, 33517017001701 + ... + 33517017001706.

It is an arithmetic number, because the mean of its divisors is an integer number (67034034003408).

Almost surely, 2^{201102102010221} is an apocalyptic number.

It is an amenable number.

201102102010221 is a deficient number, since it is larger than the sum of its proper divisors (67034034003411).

201102102010221 is an equidigital number, since it uses as much as digits as its factorization.

201102102010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67034034003410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201102102010221 its reverse (122010201201102), we get a palindrome (323112303211323).

The spelling of 201102102010221 in words is "two hundred one trillion, one hundred two billion, one hundred two million, ten thousand, two hundred twenty-one".