522545350320121 has 4 divisors (see below), whose sum is σ = 522583103773044. Its totient is φ = 522507596867200.

The previous prime is 522545350320083. The next prime is 522545350320167. The reversal of 522545350320121 is 121023053545225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94874223315600 + 427671127004521 = 9740340^2 + 20680211^2 .

It is a cyclic number.

It is not a de Polignac number, because 522545350320121 - 2²¹ = 522545348222969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522545350320421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18876705700 + ... + 18876733381.

It is an arithmetic number, because the mean of its divisors is an integer number (130645775943261).

Almost surely, 2^{522545350320121} is an apocalyptic number.

It is an amenable number.

522545350320121 is a deficient number, since it is larger than the sum of its proper divisors (37753452923).

522545350320121 is a wasteful number, since it uses less digits than its factorization.

522545350320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37753452922.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 522545350320121 in words is "five hundred twenty-two trillion, five hundred forty-five billion, three hundred fifty million, three hundred twenty thousand, one hundred twenty-one".