1211122000120 has 16 divisors (see below), whose sum is σ = 2725024500360. Its totient is φ = 484448800032.

The previous prime is 1211122000063. The next prime is 1211122000171. The reversal of 1211122000120 is 210002211121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211122000120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15139024962 + ... + 15139025041.

Almost surely, 2^{1211122000120} is an apocalyptic number.

1211122000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211122000120 is an abundant number, since it is smaller than the sum of its proper divisors (1513902500240).

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

1211122000120 is a wasteful number, since it uses less digits than its factorization.

1211122000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30278050014 (or 30278050010 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1211122000120 its reverse (210002211121), we get a palindrome (1421124211241).

The spelling of 1211122000120 in words is "one trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twenty", and thus it is an aban number.