221010200202101 has 4 divisors (see below), whose sum is σ = 221010578505600. Its totient is φ = 221009821898604.

The previous prime is 221010200202061. The next prime is 221010200202163. The reversal of 221010200202101 is 101202002010122.

221010200202101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-221010200202101 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 (221010200201101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188274071 + ... + 189444308.

It is an arithmetic number, because the mean of its divisors is an integer number (55252644626400).

Almost surely, 2^{221010200202101} is an apocalyptic number.

It is an amenable number.

221010200202101 is a deficient number, since it is larger than the sum of its proper divisors (378303499).

221010200202101 is an equidigital number, since it uses as much as digits as its factorization.

221010200202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378303498.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221010200202101 its reverse (101202002010122), we get a palindrome (322212202212223).

The spelling of 221010200202101 in words is "two hundred twenty-one trillion, ten billion, two hundred million, two hundred two thousand, one hundred one".