12111210638070 has 32 divisors (see below), whose sum is σ = 29133117192960. Its totient is φ = 3222299318880.

The previous prime is 12111210638057. The next prime is 12111210638089. The reversal of 12111210638070 is 7083601211121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459789816 + ... + 459816155.

It is an arithmetic number, because the mean of its divisors is an integer number (910409912280).

Almost surely, 2^{12111210638070} is an apocalyptic number.

12111210638070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111210638070 is an abundant number, since it is smaller than the sum of its proper divisors (17021906554890).

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

12111210638070 is a wasteful number, since it uses less digits than its factorization.

12111210638070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919606420.

The product of its (nonzero) digits is 4032, while the sum is 33.

Adding to 12111210638070 its reverse (7083601211121), we get a palindrome (19194811849191).

The spelling of 12111210638070 in words is "twelve trillion, one hundred eleven billion, two hundred ten million, six hundred thirty-eight thousand, seventy".