210131222030221 has 16 divisors (see below), whose sum is σ = 216293677367040. Its totient is φ = 203994572506560.

The previous prime is 210131222030189. The next prime is 210131222030237. The reversal of 210131222030221 is 122030222131012.

It is a cyclic number.

It is not a de Polignac number, because 210131222030221 - 2⁵ = 210131222030189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210131222030192 and 210131222030201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210131222030281) 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 15 ways as a sum of consecutive naturals, for example, 38050735 + ... + 43221763.

It is an arithmetic number, because the mean of its divisors is an integer number (13518354835440).

Almost surely, 2^{210131222030221} is an apocalyptic number.

It is an amenable number.

210131222030221 is a deficient number, since it is larger than the sum of its proper divisors (6162455336819).

210131222030221 is a wasteful number, since it uses less digits than its factorization.

210131222030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173524.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 210131222030221 its reverse (122030222131012), we get a palindrome (332161444161233).

The spelling of 210131222030221 in words is "two hundred ten trillion, one hundred thirty-one billion, two hundred twenty-two million, thirty thousand, two hundred twenty-one".