11111101010012 has 48 divisors (see below), whose sum is σ = 19729171056000. Its totient is φ = 5474480753664.

The previous prime is 11111101009993. The next prime is 11111101010081. The reversal of 11111101010012 is 21001010111111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11111101009975 and 11111101010002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374992814 + ... + 375022442.

It is an arithmetic number, because the mean of its divisors is an integer number (411024397000).

Almost surely, 2^{11111101010012} is an apocalyptic number.

It is an amenable number.

11111101010012 is a deficient number, since it is larger than the sum of its proper divisors (8618070045988).

11111101010012 is a wasteful number, since it uses less digits than its factorization.

11111101010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31998 (or 31996 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11111101010012 its reverse (21001010111111), we get a palindrome (32112111121123).

The spelling of 11111101010012 in words is "eleven trillion, one hundred eleven billion, one hundred one million, ten thousand, twelve".