10013001031221 has 32 divisors (see below), whose sum is σ = 13420794562560. Its totient is φ = 6640352531904.

The previous prime is 10013001031207. The next prime is 10013001031223. The reversal of 10013001031221 is 12213010031001.

It is a happy number.

It is not a de Polignac number, because 10013001031221 - 2¹⁴ = 10013001014837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10013001031221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10013001031223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2115569371 + ... + 2115574103.

It is an arithmetic number, because the mean of its divisors is an integer number (419399830080).

Almost surely, 2^{10013001031221} is an apocalyptic number.

It is an amenable number.

10013001031221 is a deficient number, since it is larger than the sum of its proper divisors (3407793531339).

10013001031221 is a wasteful number, since it uses less digits than its factorization.

10013001031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8305.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10013001031221 its reverse (12213010031001), we get a palindrome (22226011062222).

The spelling of 10013001031221 in words is "ten trillion, thirteen billion, one million, thirty-one thousand, two hundred twenty-one".