12203126985 has 16 divisors (see below), whose sum is σ = 22314289536. Its totient is φ = 5578572288.

The previous prime is 12203126927. The next prime is 12203126989. The reversal of 12203126985 is 58962130221.

It is not a de Polignac number, because 12203126985 - 2⁷ = 12203126857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12203126989) 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 15 ways as a sum of consecutive naturals, for example, 58110024 + ... + 58110233.

It is an arithmetic number, because the mean of its divisors is an integer number (1394643096).

Almost surely, 2^12203126985 is an apocalyptic number.

12203126985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12203126985 is a deficient number, since it is larger than the sum of its proper divisors (10111162551).

12203126985 is a wasteful number, since it uses less digits than its factorization.

12203126985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116220272.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 12203126985 in words is "twelve billion, two hundred three million, one hundred twenty-six thousand, nine hundred eighty-five".