522522123341321 has 8 divisors (see below), whose sum is σ = 540649704091080. Its totient is φ = 504401847691392.

The previous prime is 522522123341303. The next prime is 522522123341341. The reversal of 522522123341321 is 123143321225225.

It can be written as a sum of positive squares in 4 ways, for example, as 24051128598025 + 498470994743296 = 4904195^2 + 22326464^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522522123341321 - 2¹⁰ = 522522123340297 is a prime.

It is a super-2 number, since 2×522522123341321² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (522522123341341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1826129420 + ... + 1826415533.

It is an arithmetic number, because the mean of its divisors is an integer number (67581213011385).

Almost surely, 2^{522522123341321} is an apocalyptic number.

It is an amenable number.

522522123341321 is a deficient number, since it is larger than the sum of its proper divisors (18127580749759).

522522123341321 is a wasteful number, since it uses less digits than its factorization.

522522123341321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652549915.

The product of its digits is 172800, while the sum is 38.

Adding to 522522123341321 its reverse (123143321225225), we get a palindrome (645665444566546).

The spelling of 522522123341321 in words is "five hundred twenty-two trillion, five hundred twenty-two billion, one hundred twenty-three million, three hundred forty-one thousand, three hundred twenty-one".