22324434521 has 2 divisors, whose sum is σ = 22324434522. Its totient is φ = 22324434520.

The previous prime is 22324434499. The next prime is 22324434569. The reversal of 22324434521 is 12543442322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22095336025 + 229098496 = 148645^2 + 15136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22324434521 is a prime.

It is a super-3 number, since 3×22324434521³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22324334521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11162217260 + 11162217261.

It is an arithmetic number, because the mean of its divisors is an integer number (11162217261).

Almost surely, 2^22324434521 is an apocalyptic number.

It is an amenable number.

22324434521 is a deficient number, since it is larger than the sum of its proper divisors (1).

22324434521 is an equidigital number, since it uses as much as digits as its factorization.

22324434521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 32.

Adding to 22324434521 its reverse (12543442322), we get a palindrome (34867876843).

The spelling of 22324434521 in words is "twenty-two billion, three hundred twenty-four million, four hundred thirty-four thousand, five hundred twenty-one".