127178192012 has 12 divisors (see below), whose sum is σ = 222583447296. Its totient is φ = 63582921360.

The previous prime is 127178192003. The next prime is 127178192017. The reversal of 127178192012 is 210291871721.

It is a super-2 number, since 2×127178192012² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127178192017) 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, 1497164 + ... + 1579827.

It is an arithmetic number, because the mean of its divisors is an integer number (18548620608).

Almost surely, 2^127178192012 is an apocalyptic number.

It is an amenable number.

127178192012 is a deficient number, since it is larger than the sum of its proper divisors (95405255284).

127178192012 is a wasteful number, since it uses less digits than its factorization.

127178192012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087328 (or 3087326 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 41.

The spelling of 127178192012 in words is "one hundred twenty-seven billion, one hundred seventy-eight million, one hundred ninety-two thousand, twelve".