21102302210 has 16 divisors (see below), whose sum is σ = 41437248192. Its totient is φ = 7673564400.

The previous prime is 21102302183. The next prime is 21102302213. The reversal of 21102302210 is 1220320112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21102302213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95919446 + ... + 95919665.

It is an arithmetic number, because the mean of its divisors is an integer number (2589828012).

Almost surely, 2^21102302210 is an apocalyptic number.

21102302210 is a deficient number, since it is larger than the sum of its proper divisors (20334945982).

21102302210 is a wasteful number, since it uses less digits than its factorization.

21102302210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191839129.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21102302210 its reverse (1220320112), we get a palindrome (22322622322).

The spelling of 21102302210 in words is "twenty-one billion, one hundred two million, three hundred two thousand, two hundred ten".