11111010101112 has 16 divisors (see below), whose sum is σ = 27777525252840. Its totient is φ = 3703670033696.

The previous prime is 11111010101089. The next prime is 11111010101119. The reversal of 11111010101112 is 21110101011111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111010101119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231479377083 + ... + 231479377130.

Almost surely, 2^{11111010101112} is an apocalyptic number.

11111010101112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11111010101112 is an abundant number, since it is smaller than the sum of its proper divisors (16666515151728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111010101112 is a wasteful number, since it uses less digits than its factorization.

11111010101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462958754222 (or 462958754218 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 11111010101112 its reverse (21110101011111), we get a palindrome (32221111112223).

Subtracting 11111010101112 from its reverse (21110101011111), we obtain a palindrome (9999090909999).

The spelling of 11111010101112 in words is "eleven trillion, one hundred eleven billion, ten million, one hundred one thousand, one hundred twelve".