322130020521 has 4 divisors (see below), whose sum is σ = 429506694032. Its totient is φ = 214753347012.

The previous prime is 322130020439. The next prime is 322130020543. The reversal of 322130020521 is 125020031223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 322130020521 - 2¹⁴ = 322130004137 is a prime.

It is a super-2 number, since 2×322130020521² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (322130060521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53688336751 + ... + 53688336756.

It is an arithmetic number, because the mean of its divisors is an integer number (107376673508).

Almost surely, 2^322130020521 is an apocalyptic number.

It is an amenable number.

322130020521 is a deficient number, since it is larger than the sum of its proper divisors (107376673511).

322130020521 is a wasteful number, since it uses less digits than its factorization.

322130020521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107376673510.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 322130020521 its reverse (125020031223), we get a palindrome (447150051744).

The spelling of 322130020521 in words is "three hundred twenty-two billion, one hundred thirty million, twenty thousand, five hundred twenty-one".