221322013433 has 2 divisors, whose sum is σ = 221322013434. Its totient is φ = 221322013432.

The previous prime is 221322013387. The next prime is 221322013483. The reversal of 221322013433 is 334310223122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161936222569 + 59385790864 = 402413^2 + 243692^2 .

It is a cyclic number.

It is not a de Polignac number, because 221322013433 - 2¹⁰ = 221322012409 is a prime.

It is a super-3 number, since 3×221322013433³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (221322013483) 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, 110661006716 + 110661006717.

It is an arithmetic number, because the mean of its divisors is an integer number (110661006717).

Almost surely, 2^221322013433 is an apocalyptic number.

It is an amenable number.

221322013433 is a deficient number, since it is larger than the sum of its proper divisors (1).

221322013433 is an equidigital number, since it uses as much as digits as its factorization.

221322013433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 221322013433 its reverse (334310223122), we get a palindrome (555632236555).

The spelling of 221322013433 in words is "two hundred twenty-one billion, three hundred twenty-two million, thirteen thousand, four hundred thirty-three".