21232102200 has 96 divisors (see below), whose sum is σ = 67598493360. Its totient is φ = 5508864000.

The previous prime is 21232102193. The next prime is 21232102231. The reversal of 21232102200 is 220123212.

It is a happy number.

It is a super-3 number, since 3×21232102200³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21232102200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 456001 + ... + 500400.

Almost surely, 2^21232102200 is an apocalyptic number.

21232102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21232102200 is an abundant number, since it is smaller than the sum of its proper divisors (46366391160).

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

21232102200 is a wasteful number, since it uses less digits than its factorization.

21232102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956457 (or 956448 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21232102200 its reverse (220123212), we get a palindrome (21452225412).

The spelling of 21232102200 in words is "twenty-one billion, two hundred thirty-two million, one hundred two thousand, two hundred".