10101111011112 has 128 divisors (see below), whose sum is σ = 27997062912000. Its totient is φ = 3011409354240.

The previous prime is 10101111011011. The next prime is 10101111011143. The reversal of 10101111011112 is 21111011110101.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4272564 + ... + 6201372.

It is an arithmetic number, because the mean of its divisors is an integer number (218727054000).

Almost surely, 2^{10101111011112} is an apocalyptic number.

10101111011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10101111011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13998531456000).

10101111011112 is an abundant number, since it is smaller than the sum of its proper divisors (17895951900888).

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

10101111011112 is a wasteful number, since it uses less digits than its factorization.

10101111011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929151 (or 1929147 counting only the distinct ones).

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

Adding to 10101111011112 its reverse (21111011110101), we get a palindrome (31212122121213).

The spelling of 10101111011112 in words is "ten trillion, one hundred one billion, one hundred eleven million, eleven thousand, one hundred twelve".