12101809650 has 96 divisors (see below), whose sum is σ = 36105308160. Its totient is φ = 2620537920.

The previous prime is 12101809637. The next prime is 12101809663. The reversal of 12101809650 is 5690810121.

It is an interprime number because it is at equal distance from previous prime (12101809637) and next prime (12101809663).

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 47 ways as a sum of consecutive naturals, for example, 283354 + ... + 323253.

It is an arithmetic number, because the mean of its divisors is an integer number (376096960).

Almost surely, 2^12101809650 is an apocalyptic number.

12101809650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101809650 is an abundant number, since it is smaller than the sum of its proper divisors (24003498510).

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

12101809650 is a wasteful number, since it uses less digits than its factorization.

12101809650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606648 (or 606643 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 33.

The spelling of 12101809650 in words is "twelve billion, one hundred one million, eight hundred nine thousand, six hundred fifty".