21032210008 has 32 divisors (see below), whose sum is σ = 42439649760. Its totient is φ = 9735252480.

The previous prime is 21032209987. The next prime is 21032210027. The reversal of 21032210008 is 80001223012.

It is a super-3 number, since 3×21032210008³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1259316 + ... + 1275907.

It is an arithmetic number, because the mean of its divisors is an integer number (1326239055).

Almost surely, 2^21032210008 is an apocalyptic number.

It is an amenable number.

21032210008 is an abundant number, since it is smaller than the sum of its proper divisors (21407439752).

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

21032210008 is a wasteful number, since it uses less digits than its factorization.

21032210008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535307 (or 2535303 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The spelling of 21032210008 in words is "twenty-one billion, thirty-two million, two hundred ten thousand, eight".