21041313122 has 8 divisors (see below), whose sum is σ = 31587612672. Its totient is φ = 10512108900.

The previous prime is 21041313121. The next prime is 21041313131. The reversal of 21041313122 is 22131314012.

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

It is a junction number, because it is equal to n+sod(n) for n = 21041313094 and 21041313103.

It is not an unprimeable number, because it can be changed into a prime (21041313121) 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 3 ways as a sum of consecutive naturals, for example, 4270754 + ... + 4275677.

It is an arithmetic number, because the mean of its divisors is an integer number (3948451584).

Almost surely, 2^21041313122 is an apocalyptic number.

21041313122 is a deficient number, since it is larger than the sum of its proper divisors (10546299550).

21041313122 is a wasteful number, since it uses less digits than its factorization.

21041313122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547664.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21041313122 its reverse (22131314012), we get a palindrome (43172627134).

The spelling of 21041313122 in words is "twenty-one billion, forty-one million, three hundred thirteen thousand, one hundred twenty-two".