1111213112 has 8 divisors (see below), whose sum is σ = 2083524600. Its totient is φ = 555606552.

The previous prime is 1111213091. The next prime is 1111213183. The reversal of 1111213112 is 2113121111.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69450812 + ... + 69450827.

It is an arithmetic number, because the mean of its divisors is an integer number (260440575).

Almost surely, 2^1111213112 is an apocalyptic number.

It is an amenable number.

1111213112 is a deficient number, since it is larger than the sum of its proper divisors (972311488).

1111213112 is a wasteful number, since it uses less digits than its factorization.

1111213112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138901645 (or 138901641 counting only the distinct ones).

The product of its digits is 12, while the sum is 14.

The square root of 1111213112 is about 33334.8633115542. The cubic root of 1111213112 is about 1035.7758617292.

Adding to 1111213112 its reverse (2113121111), we get a palindrome (3224334223).

The spelling of 1111213112 in words is "one billion, one hundred eleven million, two hundred thirteen thousand, one hundred twelve".