21636063022 has 32 divisors (see below), whose sum is σ = 37628997120. Its totient is φ = 9138060960.

The previous prime is 21636063011. The next prime is 21636063023. The reversal of 21636063022 is 22036063612.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21636063023) 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, 4201053 + ... + 4206199.

It is an arithmetic number, because the mean of its divisors is an integer number (1175906160).

Almost surely, 2^21636063022 is an apocalyptic number.

21636063022 is a deficient number, since it is larger than the sum of its proper divisors (15992934098).

21636063022 is a wasteful number, since it uses less digits than its factorization.

21636063022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9456.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 21636063022 in words is "twenty-one billion, six hundred thirty-six million, sixty-three thousand, twenty-two".