12105500070 has 32 divisors (see below), whose sum is σ = 30316384512. Its totient is φ = 3087779552.

The previous prime is 12105500027. The next prime is 12105500089. The reversal of 12105500070 is 7000550121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8771412 + ... + 8772791.

It is an arithmetic number, because the mean of its divisors is an integer number (947387016).

Almost surely, 2^12105500070 is an apocalyptic number.

12105500070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12105500070 is an abundant number, since it is smaller than the sum of its proper divisors (18210884442).

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

12105500070 is a wasteful number, since it uses less digits than its factorization.

12105500070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17544236.

The product of its (nonzero) digits is 350, while the sum is 21.

The spelling of 12105500070 in words is "twelve billion, one hundred five million, five hundred thousand, seventy".