10221221323013 has 4 divisors (see below), whose sum is σ = 10238633966400. Its totient is φ = 10203808679628.

The previous prime is 10221221322959. The next prime is 10221221323031. The reversal of 10221221323013 is 31032312212201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10221221323013 - 2⁸ = 10221221322757 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 10221221323013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221221326013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8706320813 + ... + 8706321986.

It is an arithmetic number, because the mean of its divisors is an integer number (2559658491600).

Almost surely, 2^{10221221323013} is an apocalyptic number.

It is an amenable number.

10221221323013 is a deficient number, since it is larger than the sum of its proper divisors (17412643387).

10221221323013 is an equidigital number, since it uses as much as digits as its factorization.

10221221323013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17412643386.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 10221221323013 its reverse (31032312212201), we get a palindrome (41253533535214).

The spelling of 10221221323013 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, three hundred twenty-three thousand, thirteen".