12075022861 has 16 divisors (see below), whose sum is σ = 13967300160. Its totient is φ = 10323607680.

The previous prime is 12075022859. The next prime is 12075022879. The reversal of 12075022861 is 16822057021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12075022861 - 2¹ = 12075022859 is a prime.

It is a super-3 number, since 3×12075022861³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12075022801) 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, 182226 + ... + 239491.

It is an arithmetic number, because the mean of its divisors is an integer number (872956260).

Almost surely, 2^12075022861 is an apocalyptic number.

12075022861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12075022861 is a deficient number, since it is larger than the sum of its proper divisors (1892277299).

12075022861 is a wasteful number, since it uses less digits than its factorization.

12075022861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421884.

The product of its (nonzero) digits is 13440, while the sum is 34.

Adding to 12075022861 its reverse (16822057021), we get a palindrome (28897079882).

The spelling of 12075022861 in words is "twelve billion, seventy-five million, twenty-two thousand, eight hundred sixty-one".