1011112122112 has 18 divisors (see below), whose sum is σ = 2018274588008. Its totient is φ = 505556060928.

The previous prime is 1011112122023. The next prime is 1011112122173. The reversal of 1011112122112 is 2112212111101.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974828108 + ... + 1974828619.

Almost surely, 2^{1011112122112} is an apocalyptic number.

It is an amenable number.

1011112122112 is a deficient number, since it is larger than the sum of its proper divisors (1007162465896).

1011112122112 is an frugal number, since it uses more digits than its factorization.

1011112122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949656743 (or 3949656729 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1011112122112 its reverse (2112212111101), we get a palindrome (3123324233213).

The spelling of 1011112122112 in words is "one trillion, eleven billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twelve".