210221001321332 has 24 divisors (see below), whose sum is σ = 397814961204864. Its totient is φ = 96822688967552.

The previous prime is 210221001321329. The next prime is 210221001321337. The reversal of 210221001321332 is 233123100122012.

It is a junction number, because it is equal to n+sod(n) for n = 210221001321298 and 210221001321307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210221001321337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32888138438 + ... + 32888144829.

It is an arithmetic number, because the mean of its divisors is an integer number (16575623383536).

Almost surely, 2^{210221001321332} is an apocalyptic number.

It is an amenable number.

210221001321332 is a deficient number, since it is larger than the sum of its proper divisors (187593959883532).

210221001321332 is a wasteful number, since it uses less digits than its factorization.

210221001321332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65776283335 (or 65776283333 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 210221001321332 its reverse (233123100122012), we get a palindrome (443344101443344).

The spelling of 210221001321332 in words is "two hundred ten trillion, two hundred twenty-one billion, one million, three hundred twenty-one thousand, three hundred thirty-two".