11121210120012 has 24 divisors (see below), whose sum is σ = 25955583259200. Its totient is φ = 3706199614416.

The previous prime is 11121210119933. The next prime is 11121210120029. The reversal of 11121210120012 is 21002101212111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11121210119973 and 11121210120000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108749962 + ... + 108852177.

It is an arithmetic number, because the mean of its divisors is an integer number (1081482635800).

Almost surely, 2^{11121210120012} is an apocalyptic number.

11121210120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11121210120012 is an abundant number, since it is smaller than the sum of its proper divisors (14834373139188).

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

11121210120012 is a wasteful number, since it uses less digits than its factorization.

11121210120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217606405 (or 217606403 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11121210120012 its reverse (21002101212111), we get a palindrome (32123311332123).

The spelling of 11121210120012 in words is "eleven trillion, one hundred twenty-one billion, two hundred ten million, one hundred twenty thousand, twelve".