21331410106 has 8 divisors (see below), whose sum is σ = 31997740500. Its totient is φ = 10665496608.

The previous prime is 21331410101. The next prime is 21331410119. The reversal of 21331410106 is 60101413312.

It can be written as a sum of positive squares in 2 ways, for example, as 20993401881 + 338008225 = 144891^2 + 18385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21331410106² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21331410101) 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 3 ways as a sum of consecutive naturals, for example, 121270 + ... + 239518.

Almost surely, 2^21331410106 is an apocalyptic number.

21331410106 is a deficient number, since it is larger than the sum of its proper divisors (10666330394).

21331410106 is a wasteful number, since it uses less digits than its factorization.

21331410106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208448.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21331410106 its reverse (60101413312), we get a palindrome (81432823418).

The spelling of 21331410106 in words is "twenty-one billion, three hundred thirty-one million, four hundred ten thousand, one hundred six".