21303220300122 has 16 divisors (see below), whose sum is σ = 42652802352960. Its totient is φ = 7093346474592.

The previous prime is 21303220300073. The next prime is 21303220300151. The reversal of 21303220300122 is 22100302230312.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 1931733723 + ... + 1931744750.

It is an arithmetic number, because the mean of its divisors is an integer number (2665800147060).

Almost surely, 2^{21303220300122} is an apocalyptic number.

21303220300122 is an abundant number, since it is smaller than the sum of its proper divisors (21349582052838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21303220300122 is a wasteful number, since it uses less digits than its factorization.

21303220300122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863479397.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21303220300122 its reverse (22100302230312), we get a palindrome (43403522530434).

The spelling of 21303220300122 in words is "twenty-one trillion, three hundred three billion, two hundred twenty million, three hundred thousand, one hundred twenty-two".