2012120404 has 24 divisors (see below), whose sum is σ = 4080924288. Its totient is φ = 850190880.

The previous prime is 2012120401. The next prime is 2012120417. The reversal of 2012120404 is 4040212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012120401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504079 + ... + 508054.

It is an arithmetic number, because the mean of its divisors is an integer number (170038512).

Almost surely, 2^2012120404 is an apocalyptic number.

It is an amenable number.

2012120404 is an abundant number, since it is smaller than the sum of its proper divisors (2068803884).

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

2012120404 is a wasteful number, since it uses less digits than its factorization.

2012120404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012215 (or 1012213 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2012120404 is about 44856.6651011865. The cubic root of 2012120404 is about 1262.4610511658.

Adding to 2012120404 its reverse (4040212102), we get a palindrome (6052332506).

The spelling of 2012120404 in words is "two billion, twelve million, one hundred twenty thousand, four hundred four".