10311202101221 has 8 divisors (see below), whose sum is σ = 11888516203584. Its totient is φ = 8759959306560.

The previous prime is 10311202101217. The next prime is 10311202101223. The reversal of 10311202101221 is 12210120211301.

It is a happy number.

10311202101221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10311202101221 - 2² = 10311202101217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10311202101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311202101223) 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, 6517826075 + ... + 6517827656.

It is an arithmetic number, because the mean of its divisors is an integer number (1486064525448).

Almost surely, 2^{10311202101221} is an apocalyptic number.

It is an amenable number.

10311202101221 is a deficient number, since it is larger than the sum of its proper divisors (1577314102363).

10311202101221 is a wasteful number, since it uses less digits than its factorization.

10311202101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13035653851.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 10311202101221 its reverse (12210120211301), we get a palindrome (22521322312522).

The spelling of 10311202101221 in words is "ten trillion, three hundred eleven billion, two hundred two million, one hundred one thousand, two hundred twenty-one".