21211304110 has 16 divisors (see below), whose sum is σ = 38338776432. Its totient is φ = 8449315200.

The previous prime is 21211304077. The next prime is 21211304129. The reversal of 21211304110 is 1140311212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4398276 + ... + 4403095.

It is an arithmetic number, because the mean of its divisors is an integer number (2396173527).

Almost surely, 2^21211304110 is an apocalyptic number.

21211304110 is a deficient number, since it is larger than the sum of its proper divisors (17127472322).

21211304110 is a wasteful number, since it uses less digits than its factorization.

21211304110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8801619.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21211304110 its reverse (1140311212), we get a palindrome (22351615322).

The spelling of 21211304110 in words is "twenty-one billion, two hundred eleven million, three hundred four thousand, one hundred ten".