5181222013001 has 2 divisors, whose sum is σ = 5181222013002. Its totient is φ = 5181222013000.

The previous prime is 5181222012991. The next prime is 5181222013003. The reversal of 5181222013001 is 1003102221815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4887972687376 + 293249325625 = 2210876^2 + 541525^2 .

It is a cyclic number.

It is not a de Polignac number, because 5181222013001 - 2⁶ = 5181222012937 is a prime.

It is a super-2 number, since 2×5181222013001² (a number of 26 digits) contains 22 as substring.

Together with 5181222013003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5181222013003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2590611006500 + 2590611006501.

It is an arithmetic number, because the mean of its divisors is an integer number (2590611006501).

Almost surely, 2^{5181222013001} is an apocalyptic number.

It is an amenable number.

5181222013001 is a deficient number, since it is larger than the sum of its proper divisors (1).

5181222013001 is an equidigital number, since it uses as much as digits as its factorization.

5181222013001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 5181222013001 its reverse (1003102221815), we get a palindrome (6184324234816).

The spelling of 5181222013001 in words is "five trillion, one hundred eighty-one billion, two hundred twenty-two million, thirteen thousand, one".