21802214203 has 24 divisors (see below), whose sum is σ = 27683187264. Its totient is φ = 16979029200.

The previous prime is 21802214197. The next prime is 21802214219. The reversal of 21802214203 is 30241220812.

It is not a de Polignac number, because 21802214203 - 2⁵ = 21802214171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21802214293) 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 23 ways as a sum of consecutive naturals, for example, 1017268 + ... + 1038478.

It is an arithmetic number, because the mean of its divisors is an integer number (1153466136).

Almost surely, 2^21802214203 is an apocalyptic number.

21802214203 is a deficient number, since it is larger than the sum of its proper divisors (5880973061).

21802214203 is a wasteful number, since it uses less digits than its factorization.

21802214203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23143 (or 23136 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 21802214203 in words is "twenty-one billion, eight hundred two million, two hundred fourteen thousand, two hundred three".