21002002096 has 40 divisors (see below), whose sum is σ = 43142328000. Its totient is φ = 9870142464.

The previous prime is 21002002081. The next prime is 21002002111. The reversal of 21002002096 is 69020020012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21002002081) and next prime (21002002111).

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, 154905 + ... + 256903.

It is an arithmetic number, because the mean of its divisors is an integer number (1078558200).

Almost surely, 2^21002002096 is an apocalyptic number.

It is an amenable number.

21002002096 is an abundant number, since it is smaller than the sum of its proper divisors (22140325904).

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

21002002096 is a wasteful number, since it uses less digits than its factorization.

21002002096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102781 (or 102775 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 21002002096 in words is "twenty-one billion, two million, two thousand, ninety-six".