21470118200 has 48 divisors (see below), whose sum is σ = 52088384880. Its totient is φ = 8214652160.

The previous prime is 21470118191. The next prime is 21470118203. The reversal of 21470118200 is 281107412.

It is a self number, because there is not a number n which added to its sum of digits gives 21470118200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21470118203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2329109 + ... + 2338308.

It is an arithmetic number, because the mean of its divisors is an integer number (1085174685).

Almost surely, 2^21470118200 is an apocalyptic number.

21470118200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21470118200 is an abundant number, since it is smaller than the sum of its proper divisors (30618266680).

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

21470118200 is a wasteful number, since it uses less digits than its factorization.

21470118200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4667456 (or 4667447 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The spelling of 21470118200 in words is "twenty-one billion, four hundred seventy million, one hundred eighteen thousand, two hundred".