12011200178 has 8 divisors (see below), whose sum is σ = 18148310172. Its totient is φ = 5961763456.

The previous prime is 12011200177. The next prime is 12011200217. The reversal of 12011200178 is 87100211021.

It can be written as a sum of positive squares in 2 ways, for example, as 10677708889 + 1333491289 = 103333^2 + 36517^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12011200177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21917975 + ... + 21918522.

Almost surely, 2^12011200178 is an apocalyptic number.

12011200178 is a deficient number, since it is larger than the sum of its proper divisors (6137109994).

12011200178 is a wasteful number, since it uses less digits than its factorization.

12011200178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43836636.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 12011200178 its reverse (87100211021), we get a palindrome (99111411199).

The spelling of 12011200178 in words is "twelve billion, eleven million, two hundred thousand, one hundred seventy-eight".