21424300122 has 16 divisors (see below), whose sum is σ = 42856255872. Its totient is φ = 7140157440.

The previous prime is 21424300111. The next prime is 21424300123. The reversal of 21424300122 is 22100342412.

21424300122 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (21424300123) 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, 282279 + ... + 350042.

It is an arithmetic number, because the mean of its divisors is an integer number (2678515992).

Almost surely, 2^21424300122 is an apocalyptic number.

21424300122 is an abundant number, since it is smaller than the sum of its proper divisors (21431955750).

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

21424300122 is a wasteful number, since it uses less digits than its factorization.

21424300122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637973.

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

Adding to 21424300122 its reverse (22100342412), we get a palindrome (43524642534).

The spelling of 21424300122 in words is "twenty-one billion, four hundred twenty-four million, three hundred thousand, one hundred twenty-two".