210202133300221 has 4 divisors (see below), whose sum is σ = 210202306239744. Its totient is φ = 210201960360700.

The previous prime is 210202133300213. The next prime is 210202133300233. The reversal of 210202133300221 is 122003331202012.

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 210202133300221 - 2³ = 210202133300213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210202133300192 and 210202133300201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210202133300021) 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, 84633565 + ... + 87081826.

It is an arithmetic number, because the mean of its divisors is an integer number (52550576559936).

Almost surely, 2^{210202133300221} is an apocalyptic number.

It is an amenable number.

210202133300221 is a deficient number, since it is larger than the sum of its proper divisors (172939523).

210202133300221 is a wasteful number, since it uses less digits than its factorization.

210202133300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172939522.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 210202133300221 its reverse (122003331202012), we get a palindrome (332205464502233).

The spelling of 210202133300221 in words is "two hundred ten trillion, two hundred two billion, one hundred thirty-three million, three hundred thousand, two hundred twenty-one".