10310111310221 has 4 divisors (see below), whose sum is σ = 10588762967292. Its totient is φ = 10031459653152.

The previous prime is 10310111310209. The next prime is 10310111310259. The reversal of 10310111310221 is 12201311101301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7106548287721 + 3203563022500 = 2665811^2 + 1789850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10310111310221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10310111310221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10310111310271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139325828480 + ... + 139325828553.

It is an arithmetic number, because the mean of its divisors is an integer number (2647190741823).

Almost surely, 2^{10310111310221} is an apocalyptic number.

It is an amenable number.

10310111310221 is a deficient number, since it is larger than the sum of its proper divisors (278651657071).

10310111310221 is an equidigital number, since it uses as much as digits as its factorization.

10310111310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278651657070.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 10310111310221 its reverse (12201311101301), we get a palindrome (22511422411522).

The spelling of 10310111310221 in words is "ten trillion, three hundred ten billion, one hundred eleven million, three hundred ten thousand, two hundred twenty-one".