221234107013 has 2 divisors, whose sum is σ = 221234107014. Its totient is φ = 221234107012.

The previous prime is 221234106997. The next prime is 221234107021. The reversal of 221234107013 is 310701432122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221161397284 + 72709729 = 470278^2 + 8527^2 .

It is a cyclic number.

It is not a de Polignac number, because 221234107013 - 2⁴ = 221234106997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221234107613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110617053506 + 110617053507.

It is an arithmetic number, because the mean of its divisors is an integer number (110617053507).

Almost surely, 2^221234107013 is an apocalyptic number.

It is an amenable number.

221234107013 is a deficient number, since it is larger than the sum of its proper divisors (1).

221234107013 is an equidigital number, since it uses as much as digits as its factorization.

221234107013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 221234107013 its reverse (310701432122), we get a palindrome (531935539135).

The spelling of 221234107013 in words is "two hundred twenty-one billion, two hundred thirty-four million, one hundred seven thousand, thirteen".