21103313122 has 8 divisors (see below), whose sum is σ = 31804993872. Its totient is φ = 10501648500.

The previous prime is 21103313111. The next prime is 21103313159. The reversal of 21103313122 is 22131330112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21103313122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25003504 + ... + 25004347.

It is an arithmetic number, because the mean of its divisors is an integer number (3975624234).

Almost surely, 2^21103313122 is an apocalyptic number.

21103313122 is a deficient number, since it is larger than the sum of its proper divisors (10701680750).

21103313122 is a wasteful number, since it uses less digits than its factorization.

21103313122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50008064.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21103313122 its reverse (22131330112), we get a palindrome (43234643234).

The spelling of 21103313122 in words is "twenty-one billion, one hundred three million, three hundred thirteen thousand, one hundred twenty-two".