12010019990 has 16 divisors (see below), whose sum is σ = 21620027952. Its totient is φ = 4803565344.

The previous prime is 12010019899. The next prime is 12010019993. The reversal of 12010019990 is 9991001021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010019993) by changing a digit.

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, 72737 + ... + 171203.

It is an arithmetic number, because the mean of its divisors is an integer number (1351251747).

Almost surely, 2^12010019990 is an apocalyptic number.

12010019990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12010019990 is a deficient number, since it is larger than the sum of its proper divisors (9610007962).

12010019990 is a wasteful number, since it uses less digits than its factorization.

12010019990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110671.

The product of its (nonzero) digits is 1458, while the sum is 32.

The spelling of 12010019990 in words is "twelve billion, ten million, nineteen thousand, nine hundred ninety".