21342422110 has 32 divisors (see below), whose sum is σ = 40134592800. Its totient is φ = 8160969600.

The previous prime is 21342421963. The next prime is 21342422119. The reversal of 21342422110 is 1122424312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21342422119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335040 + ... + 393619.

It is an arithmetic number, because the mean of its divisors is an integer number (1254206025).

Almost surely, 2^21342422110 is an apocalyptic number.

21342422110 is a deficient number, since it is larger than the sum of its proper divisors (18792170690).

21342422110 is a wasteful number, since it uses less digits than its factorization.

21342422110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728796.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21342422110 its reverse (1122424312), we get a palindrome (22464846422).

The spelling of 21342422110 in words is "twenty-one billion, three hundred forty-two million, four hundred twenty-two thousand, one hundred ten".