11101112121012 has 48 divisors (see below), whose sum is σ = 26128063164672. Its totient is φ = 3668270336640.

The previous prime is 11101112121007. The next prime is 11101112121037. The reversal of 11101112121012 is 21012121110111.

It is a junction number, because it is equal to n+sod(n) for n = 11101112120982 and 11101112121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6023623 + ... + 7647630.

It is an arithmetic number, because the mean of its divisors is an integer number (544334649264).

Almost surely, 2^{11101112121012} is an apocalyptic number.

11101112121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11101112121012 is an abundant number, since it is smaller than the sum of its proper divisors (15026951043660).

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

11101112121012 is a wasteful number, since it uses less digits than its factorization.

11101112121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13671848 (or 13671846 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11101112121012 its reverse (21012121110111), we get a palindrome (32113233231123).

The spelling of 11101112121012 in words is "eleven trillion, one hundred one billion, one hundred twelve million, one hundred twenty-one thousand, twelve".