13301220004021 has 2 divisors, whose sum is σ = 13301220004022. Its totient is φ = 13301220004020.

The previous prime is 13301220003947. The next prime is 13301220004043. The reversal of 13301220004021 is 12040002210331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11353604379121 + 1947615624900 = 3369511^2 + 1395570^2 .

It is a cyclic number.

It is not a de Polignac number, because 13301220004021 - 2¹¹ = 13301220001973 is a prime.

It is a super-2 number, since 2×13301220004021² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13301220004021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13301220004081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6650610002010 + 6650610002011.

It is an arithmetic number, because the mean of its divisors is an integer number (6650610002011).

Almost surely, 2^{13301220004021} is an apocalyptic number.

It is an amenable number.

13301220004021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13301220004021 is an equidigital number, since it uses as much as digits as its factorization.

13301220004021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13301220004021 its reverse (12040002210331), we get a palindrome (25341222214352).

The spelling of 13301220004021 in words is "thirteen trillion, three hundred one billion, two hundred twenty million, four thousand, twenty-one".