10013311201221 has 40 divisors (see below), whose sum is σ = 15203813011200. Its totient is φ = 6566537147040.

The previous prime is 10013311201217. The next prime is 10013311201237. The reversal of 10013311201221 is 12210211331001.

10013311201221 is a `hidden beast` number, since 100 + 1 + 331 + 12 + 0 + 1 + 221 = 666.

It is not a de Polignac number, because 10013311201221 - 2² = 10013311201217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10013311201194 and 10013311201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10013311201241) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1187265 + ... + 4629926.

It is an arithmetic number, because the mean of its divisors is an integer number (380095325280).

Almost surely, 2^{10013311201221} is an apocalyptic number.

It is an amenable number.

10013311201221 is a deficient number, since it is larger than the sum of its proper divisors (5190501809979).

10013311201221 is an equidigital number, since it uses as much as digits as its factorization.

10013311201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5817551 (or 5817542 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 10013311201221 its reverse (12210211331001), we get a palindrome (22223522532222).

The spelling of 10013311201221 in words is "ten trillion, thirteen billion, three hundred eleven million, two hundred one thousand, two hundred twenty-one".