21232230212200 has 96 divisors (see below), whose sum is σ = 56964807768960. Its totient is φ = 7208945798400.

The previous prime is 21232230212143. The next prime is 21232230212209. The reversal of 21232230212200 is 221203223212.

It is not an unprimeable number, because it can be changed into a prime (21232230212209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73476571 + ... + 73764970.

It is an arithmetic number, because the mean of its divisors is an integer number (593383414260).

Almost surely, 2^{21232230212200} is an apocalyptic number.

21232230212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21232230212200 is an abundant number, since it is smaller than the sum of its proper divisors (35732577556760).

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

21232230212200 is a wasteful number, since it uses less digits than its factorization.

21232230212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147241667 (or 147241658 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21232230212200 its reverse (221203223212), we get a palindrome (21453433435412).

The spelling of 21232230212200 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred thirty million, two hundred twelve thousand, two hundred".