111001001011012 has 48 divisors (see below), whose sum is σ = 236501815818240. Its totient is φ = 44525086718112.

The previous prime is 111001001011007. The next prime is 111001001011013. The reversal of 111001001011012 is 210110100100111.

It is a super-2 number, since 2×111001001011012² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111001001011012.

It is not an unprimeable number, because it can be changed into a prime (111001001011013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1256874508 + ... + 1256962819.

It is an arithmetic number, because the mean of its divisors is an integer number (4927121162880).

Almost surely, 2^{111001001011012} is an apocalyptic number.

It is an amenable number.

111001001011012 is an abundant number, since it is smaller than the sum of its proper divisors (125500814807228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111001001011012 is a wasteful number, since it uses less digits than its factorization.

111001001011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513837440 (or 2513837438 counting only the distinct ones).

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

Adding to 111001001011012 its reverse (210110100100111), we get a palindrome (321111101111123).

The spelling of 111001001011012 in words is "one hundred eleven trillion, one billion, one million, eleven thousand, twelve".