1001112011212 has 72 divisors (see below), whose sum is σ = 1883793143232. Its totient is φ = 463909501440.

The previous prime is 1001112011201. The next prime is 1001112011227. The reversal of 1001112011212 is 2121102111001.

It is a happy number.

It is a super-2 number, since 2×1001112011212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001112011192 and 1001112011201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 437739133 + ... + 437741419.

It is an arithmetic number, because the mean of its divisors is an integer number (26163793656).

Almost surely, 2^{1001112011212} is an apocalyptic number.

It is an amenable number.

1001112011212 is a deficient number, since it is larger than the sum of its proper divisors (882681132020).

1001112011212 is a wasteful number, since it uses less digits than its factorization.

1001112011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727 (or 3654 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1001112011212 its reverse (2121102111001), we get a palindrome (3122214122213).

The spelling of 1001112011212 in words is "one trillion, one billion, one hundred twelve million, eleven thousand, two hundred twelve".