21102303122 has 8 divisors (see below), whose sum is σ = 31773810816. Its totient is φ = 10511032852.

The previous prime is 21102303113. The next prime is 21102303169. The reversal of 21102303122 is 22130320112.

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 21102303122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20058698 + ... + 20059749.

It is an arithmetic number, because the mean of its divisors is an integer number (3971726352).

Almost surely, 2^21102303122 is an apocalyptic number.

21102303122 is a deficient number, since it is larger than the sum of its proper divisors (10671507694).

21102303122 is a wasteful number, since it uses less digits than its factorization.

21102303122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40118712.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21102303122 its reverse (22130320112), we get a palindrome (43232623234).

The spelling of 21102303122 in words is "twenty-one billion, one hundred two million, three hundred three thousand, one hundred twenty-two".