21233201110 has 64 divisors (see below), whose sum is σ = 44190572544. Its totient is φ = 7259788800.

The previous prime is 21233201107. The next prime is 21233201123. The reversal of 21233201110 is 1110233212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2094955 + ... + 2105065.

It is an arithmetic number, because the mean of its divisors is an integer number (690477696).

Almost surely, 2^21233201110 is an apocalyptic number.

21233201110 is an abundant number, since it is smaller than the sum of its proper divisors (22957371434).

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

21233201110 is a wasteful number, since it uses less digits than its factorization.

21233201110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11269.

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

Adding to 21233201110 its reverse (1110233212), we get a palindrome (22343434322).

The spelling of 21233201110 in words is "twenty-one billion, two hundred thirty-three million, two hundred one thousand, one hundred ten".