13801221992213 has 2 divisors, whose sum is σ = 13801221992214. Its totient is φ = 13801221992212.

The previous prime is 13801221992171. The next prime is 13801221992219. The reversal of 13801221992213 is 31229912210831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13358016239044 + 443205753169 = 3654862^2 + 665737^2 .

It is an emirp because it is prime and its reverse (31229912210831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13801221992213 - 2⁶ = 13801221992149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13801221992219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6900610996106 + 6900610996107.

It is an arithmetic number, because the mean of its divisors is an integer number (6900610996107).

Almost surely, 2^{13801221992213} is an apocalyptic number.

It is an amenable number.

13801221992213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13801221992213 is an equidigital number, since it uses as much as digits as its factorization.

13801221992213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 13801221992213 in words is "thirteen trillion, eight hundred one billion, two hundred twenty-one million, nine hundred ninety-two thousand, two hundred thirteen".