21601300422 has 16 divisors (see below), whose sum is σ = 46525878000. Its totient is φ = 6646553952.

The previous prime is 21601300417. The next prime is 21601300429. The reversal of 21601300422 is 22400310612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21601300429) 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, 138469797 + ... + 138469952.

It is an arithmetic number, because the mean of its divisors is an integer number (2907867375).

Almost surely, 2^21601300422 is an apocalyptic number.

21601300422 is an abundant number, since it is smaller than the sum of its proper divisors (24924577578).

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

21601300422 is a wasteful number, since it uses less digits than its factorization.

21601300422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276939767.

The product of its (nonzero) digits is 576, while the sum is 21.

The spelling of 21601300422 in words is "twenty-one billion, six hundred one million, three hundred thousand, four hundred twenty-two".