21458011322 has 16 divisors (see below), whose sum is σ = 36639767232. Its totient is φ = 9329569920.

The previous prime is 21458011307. The next prime is 21458011327. The reversal of 21458011322 is 22311085412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21458011327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21203063 + ... + 21204074.

It is an arithmetic number, because the mean of its divisors is an integer number (2289985452).

Almost surely, 2^21458011322 is an apocalyptic number.

21458011322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21458011322 is a deficient number, since it is larger than the sum of its proper divisors (15181755910).

21458011322 is a wasteful number, since it uses less digits than its factorization.

21458011322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42407173.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 21458011322 its reverse (22311085412), we get a palindrome (43769096734).

The spelling of 21458011322 in words is "twenty-one billion, four hundred fifty-eight million, eleven thousand, three hundred twenty-two".