100421320422 has 16 divisors (see below), whose sum is σ = 200845765440. Its totient is φ = 33473252712.

The previous prime is 100421320421. The next prime is 100421320451. The reversal of 100421320422 is 224023124001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100421320421) 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, 621229 + ... + 766007.

It is an arithmetic number, because the mean of its divisors is an integer number (12552860340).

Almost surely, 2^100421320422 is an apocalyptic number.

100421320422 is an abundant number, since it is smaller than the sum of its proper divisors (100424445018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100421320422 is a wasteful number, since it uses less digits than its factorization.

100421320422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260387.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 100421320422 its reverse (224023124001), we get a palindrome (324444444423).

The spelling of 100421320422 in words is "one hundred billion, four hundred twenty-one million, three hundred twenty thousand, four hundred twenty-two".