221132322331013 has 2 divisors, whose sum is σ = 221132322331014. Its totient is φ = 221132322331012.

The previous prime is 221132322331009. The next prime is 221132322331031. The reversal of 221132322331013 is 310133223231122.

Together with next prime (221132322331031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178113126885409 + 43019195445604 = 13345903^2 + 6558902^2 .

It is a cyclic number.

It is not a de Polignac number, because 221132322331013 - 2² = 221132322331009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221132322331003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110566161165506 + 110566161165507.

It is an arithmetic number, because the mean of its divisors is an integer number (110566161165507).

Almost surely, 2^{221132322331013} is an apocalyptic number.

It is an amenable number.

221132322331013 is a deficient number, since it is larger than the sum of its proper divisors (1).

221132322331013 is an equidigital number, since it uses as much as digits as its factorization.

221132322331013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 221132322331013 its reverse (310133223231122), we get a palindrome (531265545562135).

The spelling of 221132322331013 in words is "two hundred twenty-one trillion, one hundred thirty-two billion, three hundred twenty-two million, three hundred thirty-one thousand, thirteen".