21136353122 has 16 divisors (see below), whose sum is σ = 33459004800. Its totient is φ = 9986212080.

The previous prime is 21136353097. The next prime is 21136353143. The reversal of 21136353122 is 22135363112.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700154 + ... + 729717.

It is an arithmetic number, because the mean of its divisors is an integer number (2091187800).

Almost surely, 2^21136353122 is an apocalyptic number.

21136353122 is a deficient number, since it is larger than the sum of its proper divisors (12322651678).

21136353122 is a wasteful number, since it uses less digits than its factorization.

21136353122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430281.

The product of its digits is 6480, while the sum is 29.

The spelling of 21136353122 in words is "twenty-one billion, one hundred thirty-six million, three hundred fifty-three thousand, one hundred twenty-two".