11112111223012 has 6 divisors (see below), whose sum is σ = 19446194640278. Its totient is φ = 5556055611504.

The previous prime is 11112111222983. The next prime is 11112111223049. The reversal of 11112111223012 is 21032211121111.

It can be written as a sum of positive squares in only one way, i.e., 7198574856256 + 3913536366756 = 2683016^2 + 1978266^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389013902873 + ... + 1389013902880.

Almost surely, 2^{11112111223012} is an apocalyptic number.

It is an amenable number.

11112111223012 is a deficient number, since it is larger than the sum of its proper divisors (8334083417266).

11112111223012 is a wasteful number, since it uses less digits than its factorization.

11112111223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778027805757 (or 2778027805755 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 11112111223012 its reverse (21032211121111), we get a palindrome (32144322344123).

The spelling of 11112111223012 in words is "eleven trillion, one hundred twelve billion, one hundred eleven million, two hundred twenty-three thousand, twelve".