1002112012 has 24 divisors (see below), whose sum is σ = 1914034752. Its totient is φ = 455288400.

The previous prime is 1002111973. The next prime is 1002112019. The reversal of 1002112012 is 2102112001.

It is a self number, because there is not a number n which added to its sum of digits gives 1002112012.

It is not an unprimeable number, because it can be changed into a prime (1002112019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121087 + ... + 129097.

It is an arithmetic number, because the mean of its divisors is an integer number (79751448).

Almost surely, 2^1002112012 is an apocalyptic number.

It is an amenable number.

1002112012 is a deficient number, since it is larger than the sum of its proper divisors (911922740).

1002112012 is a wasteful number, since it uses less digits than its factorization.

1002112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10869 (or 10867 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1002112012 is about 31656.1528300582. The cubic root of 1002112012 is about 1000.7035089591.

Adding to 1002112012 its reverse (2102112001), we get a palindrome (3104224013).

It can be divided in two parts, 100 and 2112012, that added together give a palindrome (2112112).

The spelling of 1002112012 in words is "one billion, two million, one hundred twelve thousand, twelve".