21013322210 has 16 divisors (see below), whose sum is σ = 38121808896. Its totient is φ = 8339144688.

The previous prime is 21013322203. The next prime is 21013322233. The reversal of 21013322210 is 1222331012.

It is a Curzon 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, 8271692 + ... + 8274231.

It is an arithmetic number, because the mean of its divisors is an integer number (2382613056).

Almost surely, 2^21013322210 is an apocalyptic number.

21013322210 is a deficient number, since it is larger than the sum of its proper divisors (17108486686).

21013322210 is a wasteful number, since it uses less digits than its factorization.

21013322210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16546057.

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

Adding to 21013322210 its reverse (1222331012), we get a palindrome (22235653222).

The spelling of 21013322210 in words is "twenty-one billion, thirteen million, three hundred twenty-two thousand, two hundred ten".