1001111412 has 24 divisors (see below), whose sum is σ = 2669630656. Its totient is φ = 286031808.

The previous prime is 1001111401. The next prime is 1001111413. The reversal of 1001111412 is 2141111001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001111413) 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, 5958913 + ... + 5959080.

Almost surely, 2^1001111412 is an apocalyptic number.

1001111412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001111412 is an abundant number, since it is smaller than the sum of its proper divisors (1668519244).

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

1001111412 is a wasteful number, since it uses less digits than its factorization.

1001111412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11918007 (or 11918005 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1001111412 is about 31640.3446883880. The cubic root of 1001111412 is about 1000.3703335028.

Adding to 1001111412 its reverse (2141111001), we get a palindrome (3142222413).

The spelling of 1001111412 in words is "one billion, one million, one hundred eleven thousand, four hundred twelve".