21524524022 has 16 divisors (see below), whose sum is σ = 32524254000. Its totient is φ = 10683301152.

The previous prime is 21524524009. The next prime is 21524524039. The reversal of 21524524022 is 22042542512.

It is a happy number.

It is a congruent 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, 174104 + ... + 270852.

It is an arithmetic number, because the mean of its divisors is an integer number (2032765875).

Almost surely, 2^21524524022 is an apocalyptic number.

21524524022 is a deficient number, since it is larger than the sum of its proper divisors (10999729978).

21524524022 is a wasteful number, since it uses less digits than its factorization.

21524524022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97567.

The product of its (nonzero) digits is 12800, while the sum is 29.

The spelling of 21524524022 in words is "twenty-one billion, five hundred twenty-four million, five hundred twenty-four thousand, twenty-two".