1011512512012 has 6 divisors (see below), whose sum is σ = 1770146896028. Its totient is φ = 505756256004.

The previous prime is 1011512511991. The next prime is 1011512512019. The reversal of 1011512512012 is 2102152151101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1011512512019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126439063998 + ... + 126439064005.

Almost surely, 2^{1011512512012} is an apocalyptic number.

It is an amenable number.

1011512512012 is a deficient number, since it is larger than the sum of its proper divisors (758634384016).

1011512512012 is a wasteful number, since it uses less digits than its factorization.

1011512512012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252878128007 (or 252878128005 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 22.

Adding to 1011512512012 its reverse (2102152151101), we get a palindrome (3113664663113).

The spelling of 1011512512012 in words is "one trillion, eleven billion, five hundred twelve million, five hundred twelve thousand, twelve".