11111200111012 has 24 divisors (see below), whose sum is σ = 19816349184632. Its totient is φ = 5449874400000.

The previous prime is 11111200110991. The next prime is 11111200111013. The reversal of 11111200111012 is 21011100211111.

It can be written as a sum of positive squares in 4 ways, for example, as 2228380186176 + 8882819924836 = 1492776^2 + 2980406^2 .

It is a super-2 number, since 2×11111200111012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111200110983 and 11111200111001.

It is not an unprimeable number, because it can be changed into a prime (11111200111013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 60951489 + ... + 61133512.

Almost surely, 2^{11111200111012} is an apocalyptic number.

It is an amenable number.

11111200111012 is a deficient number, since it is larger than the sum of its proper divisors (8705149073620).

11111200111012 is a wasteful number, since it uses less digits than its factorization.

11111200111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122085439 (or 122085437 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11111200111012 its reverse (21011100211111), we get a palindrome (32122300322123).

The spelling of 11111200111012 in words is "eleven trillion, one hundred eleven billion, two hundred million, one hundred eleven thousand, twelve".