210221202321232 has 10 divisors (see below), whose sum is σ = 407303579497418. Its totient is φ = 105110601160608.

The previous prime is 210221202321149. The next prime is 210221202321253. The reversal of 210221202321232 is 232123202122012.

It can be written as a sum of positive squares in only one way, i.e., 105144023808576 + 105077178512656 = 10253976^2 + 10250716^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210221202321197 and 210221202321206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6569412572523 + ... + 6569412572554.

Almost surely, 2^{210221202321232} is an apocalyptic number.

It is an amenable number.

210221202321232 is a deficient number, since it is larger than the sum of its proper divisors (197082377176186).

210221202321232 is a wasteful number, since it uses less digits than its factorization.

210221202321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13138825145085 (or 13138825145079 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 210221202321232 its reverse (232123202122012), we get a palindrome (442344404443244).

The spelling of 210221202321232 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred two million, three hundred twenty-one thousand, two hundred thirty-two".