2011012120120 has 16 divisors (see below), whose sum is σ = 4524777270360. Its totient is φ = 804404848032.

The previous prime is 2011012120069. The next prime is 2011012120123. The reversal of 2011012120120 is 210212101102.

It is a self number, because there is not a number n which added to its sum of digits gives 2011012120120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011012120123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25137651462 + ... + 25137651541.

Almost surely, 2^{2011012120120} is an apocalyptic number.

2011012120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011012120120 is an abundant number, since it is smaller than the sum of its proper divisors (2513765150240).

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

2011012120120 is a wasteful number, since it uses less digits than its factorization.

2011012120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50275303014 (or 50275303010 counting only the distinct ones).

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

Adding to 2011012120120 its reverse (210212101102), we get a palindrome (2221224221222).

The spelling of 2011012120120 in words is "two trillion, eleven billion, twelve million, one hundred twenty thousand, one hundred twenty".