21303100221010 has 8 divisors (see below), whose sum is σ = 38345580397836. Its totient is φ = 8521240088400.

The previous prime is 21303100220999. The next prime is 21303100221031. The reversal of 21303100221010 is 1012200130312.

It can be written as a sum of positive squares in 2 ways, for example, as 17672211891889 + 3630888329121 = 4203833^2 + 1905489^2 .

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

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, 1065155011041 + ... + 1065155011060.

Almost surely, 2^{21303100221010} is an apocalyptic number.

21303100221010 is a deficient number, since it is larger than the sum of its proper divisors (17042480176826).

21303100221010 is a wasteful number, since it uses less digits than its factorization.

21303100221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130310022108.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21303100221010 its reverse (1012200130312), we get a palindrome (22315300351322).

The spelling of 21303100221010 in words is "twenty-one trillion, three hundred three billion, one hundred million, two hundred twenty-one thousand, ten".