521302230422 has 16 divisors (see below), whose sum is σ = 791386597872. Its totient is φ = 257517751200.

The previous prime is 521302230389. The next prime is 521302230461. The reversal of 521302230422 is 224032203125.

It is a junction number, because it is equal to n+sod(n) for n = 521302230391 and 521302230400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2668733 + ... + 2857400.

It is an arithmetic number, because the mean of its divisors is an integer number (49461662367).

Almost surely, 2^521302230422 is an apocalyptic number.

521302230422 is a deficient number, since it is larger than the sum of its proper divisors (270084367450).

521302230422 is a wasteful number, since it uses less digits than its factorization.

521302230422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526703.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 521302230422 its reverse (224032203125), we get a palindrome (745334433547).

The spelling of 521302230422 in words is "five hundred twenty-one billion, three hundred two million, two hundred thirty thousand, four hundred twenty-two".