17121213996 has 24 divisors (see below), whose sum is σ = 39964990464. Its totient is φ = 5704858320.

The previous prime is 17121213971. The next prime is 17121214057. The reversal of 17121213996 is 69931212171.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244240 + ... + 306423.

It is an arithmetic number, because the mean of its divisors is an integer number (1665207936).

Almost surely, 2^17121213996 is an apocalyptic number.

It is an amenable number.

17121213996 is an abundant number, since it is smaller than the sum of its proper divisors (22843776468).

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

17121213996 is a wasteful number, since it uses less digits than its factorization.

17121213996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553261 (or 553259 counting only the distinct ones).

The product of its digits is 40824, while the sum is 42.

The spelling of 17121213996 in words is "seventeen billion, one hundred twenty-one million, two hundred thirteen thousand, nine hundred ninety-six".