21233332110 has 16 divisors (see below), whose sum is σ = 50959997136. Its totient is φ = 5662221888.

The previous prime is 21233332097. The next prime is 21233332121. The reversal of 21233332110 is 1123333212.

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, 353888839 + ... + 353888898.

It is an arithmetic number, because the mean of its divisors is an integer number (3184999821).

Almost surely, 2^21233332110 is an apocalyptic number.

21233332110 is an abundant number, since it is smaller than the sum of its proper divisors (29726665026).

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

21233332110 is a wasteful number, since it uses less digits than its factorization.

21233332110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707777747.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21233332110 its reverse (1123333212), we get a palindrome (22356665322).

The spelling of 21233332110 in words is "twenty-one billion, two hundred thirty-three million, three hundred thirty-two thousand, one hundred ten".