201210112220321 has 8 divisors (see below), whose sum is σ = 201510234868488. Its totient is φ = 200910083328000.

The previous prime is 201210112220311. The next prime is 201210112220387. The reversal of 201210112220321 is 123022211012102.

It can be written as a sum of positive squares in 4 ways, for example, as 84090532267921 + 117119579952400 = 9170089^2 + 10822180^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201210112220321 - 2⁴⁶ = 130841368042657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201210112220293 and 201210112220302.

It is not an unprimeable number, because it can be changed into a prime (201210112220311) 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, 19142960 + ... + 27728561.

It is an arithmetic number, because the mean of its divisors is an integer number (25188779358561).

Almost surely, 2^{201210112220321} is an apocalyptic number.

It is an amenable number.

201210112220321 is a deficient number, since it is larger than the sum of its proper divisors (300122648167).

201210112220321 is an equidigital number, since it uses as much as digits as its factorization.

201210112220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46877923.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 201210112220321 its reverse (123022211012102), we get a palindrome (324232323232423).

The spelling of 201210112220321 in words is "two hundred one trillion, two hundred ten billion, one hundred twelve million, two hundred twenty thousand, three hundred twenty-one".