2120312012 has 96 divisors (see below), whose sum is σ = 4856842368. Its totient is φ = 785977344.

The previous prime is 2120312009. The next prime is 2120312057. The reversal of 2120312012 is 2102130212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1713458 + ... + 1714694.

It is an arithmetic number, because the mean of its divisors is an integer number (50592108).

Almost surely, 2^2120312012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120312012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2428421184).

2120312012 is an abundant number, since it is smaller than the sum of its proper divisors (2736530356).

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

2120312012 is a wasteful number, since it uses less digits than its factorization.

2120312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555 (or 1553 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2120312012 is about 46046.8458420335. The cubic root of 2120312012 is about 1284.6946767110.

Adding to 2120312012 its reverse (2102130212), we get a palindrome (4222442224).

The spelling of 2120312012 in words is "two billion, one hundred twenty million, three hundred twelve thousand, twelve".