1001111101012 has 24 divisors (see below), whose sum is σ = 2011802214240. Its totient is φ = 431100473760.

The previous prime is 1001111101009. The next prime is 1001111101061. The reversal of 1001111101012 is 2101011111001.

It is a self number, because there is not a number n which added to its sum of digits gives 1001111101012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598749823 + ... + 598751494.

It is an arithmetic number, because the mean of its divisors is an integer number (83825092260).

Almost surely, 2^{1001111101012} is an apocalyptic number.

It is an amenable number.

1001111101012 is an abundant number, since it is smaller than the sum of its proper divisors (1010691113228).

1001111101012 is a wasteful number, since it uses less digits than its factorization.

1001111101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197501351 (or 1197501349 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1001111101012 its reverse (2101011111001), we get a palindrome (3102122212013).

The spelling of 1001111101012 in words is "one trillion, one billion, one hundred eleven million, one hundred one thousand, twelve".