21163132021107 has 16 divisors (see below), whose sum is σ = 29024936416512. Its totient is φ = 13706219881440.

The previous prime is 21163132021063. The next prime is 21163132021123. The reversal of 21163132021107 is 70112023136112.

It is not a de Polignac number, because 21163132021107 - 2¹⁶ = 21163131955571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21163132021177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147268869 + ... + 147412502.

It is an arithmetic number, because the mean of its divisors is an integer number (1814058526032).

Almost surely, 2^{21163132021107} is an apocalyptic number.

21163132021107 is a deficient number, since it is larger than the sum of its proper divisors (7861804395405).

21163132021107 is a wasteful number, since it uses less digits than its factorization.

21163132021107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294682058.

The product of its (nonzero) digits is 3024, while the sum is 30.

Adding to 21163132021107 its reverse (70112023136112), we get a palindrome (91275155157219).

The spelling of 21163132021107 in words is "twenty-one trillion, one hundred sixty-three billion, one hundred thirty-two million, twenty-one thousand, one hundred seven".