1122121110012 has 24 divisors (see below), whose sum is σ = 2992322960256. Its totient is φ = 320606031408.

The previous prime is 1122121109927. The next prime is 1122121110037. The reversal of 1122121110012 is 2100111212211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1122121109973 and 1122121110000.

It is a congruent number.

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, 6679292238 + ... + 6679292405.

It is an arithmetic number, because the mean of its divisors is an integer number (124680123344).

Almost surely, 2^{1122121110012} is an apocalyptic number.

1122121110012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122121110012 is an abundant number, since it is smaller than the sum of its proper divisors (1870201850244).

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

1122121110012 is a wasteful number, since it uses less digits than its factorization.

1122121110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13358584657 (or 13358584655 counting only the distinct ones).

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

Adding to 1122121110012 its reverse (2100111212211), we get a palindrome (3222232322223).

The spelling of 1122121110012 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred ten thousand, twelve".