220021302331013 has 2 divisors, whose sum is σ = 220021302331014. Its totient is φ = 220021302331012.

The previous prime is 220021302330919. The next prime is 220021302331057. The reversal of 220021302331013 is 310133203120022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149831725292929 + 70189577038084 = 12240577^2 + 8377922^2 .

It is a cyclic number.

It is not a de Polignac number, because 220021302331013 - 2¹⁴ = 220021302314629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220021302331013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220021302331813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010651165506 + 110010651165507.

It is an arithmetic number, because the mean of its divisors is an integer number (110010651165507).

Almost surely, 2^{220021302331013} is an apocalyptic number.

It is an amenable number.

220021302331013 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021302331013 is an equidigital number, since it uses as much as digits as its factorization.

220021302331013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 220021302331013 its reverse (310133203120022), we get a palindrome (530154505451035).

The spelling of 220021302331013 in words is "two hundred twenty trillion, twenty-one billion, three hundred two million, three hundred thirty-one thousand, thirteen".