13021300220121 has 20 divisors (see below), whose sum is σ = 19454135979300. Its totient is φ = 8679722528736.

The previous prime is 13021300220107. The next prime is 13021300220141. The reversal of 13021300220121 is 12102200312031.

13021300220121 is a `hidden beast` number, since 1 + 3 + 0 + 21 + 300 + 220 + 121 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 128281450896 + 12893018769225 = 358164^2 + 3590685^2 .

It is not a de Polignac number, because 13021300220121 - 2³⁰ = 13020226478297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13021300220094 and 13021300220103.

It is not an unprimeable number, because it can be changed into a prime (13021300220141) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9976726 + ... + 11206143.

It is an arithmetic number, because the mean of its divisors is an integer number (972706798965).

Almost surely, 2^{13021300220121} is an apocalyptic number.

It is an amenable number.

13021300220121 is a deficient number, since it is larger than the sum of its proper divisors (6432835759179).

13021300220121 is an equidigital number, since it uses as much as digits as its factorization.

13021300220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21190470 (or 21190461 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13021300220121 its reverse (12102200312031), we get a palindrome (25123500532152).

The spelling of 13021300220121 in words is "thirteen trillion, twenty-one billion, three hundred million, two hundred twenty thousand, one hundred twenty-one".