1000001011112 has 8 divisors (see below), whose sum is σ = 1875001895850. Its totient is φ = 500000505552.

The previous prime is 1000001011013. The next prime is 1000001011117. The reversal of 1000001011112 is 2111101000001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 906086956996 + 93914054116 = 951886^2 + 306454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a Harshad number since it is a multiple of its sum of digits (8), and also a Moran number because the ratio is a prime number: 125000126389 = 1000001011112 / (1 + 0 + 0 + 0 + 0 + 0 + 1 + 0 + 1 + 1 + 1 + 1 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 1000001011112.

It is not an unprimeable number, because it can be changed into a prime (1000001011117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62500063187 + ... + 62500063202.

Almost surely, 2^{1000001011112} is an apocalyptic number.

It is an amenable number.

1000001011112 is a deficient number, since it is larger than the sum of its proper divisors (875000884738).

1000001011112 is a wasteful number, since it uses less digits than its factorization.

1000001011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125000126395 (or 125000126391 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1000001011112 its reverse (2111101000001), we get a palindrome (3111102011113).

The spelling of 1000001011112 in words is "one trillion, one million, eleven thousand, one hundred twelve".