2021130012 has 48 divisors (see below), whose sum is σ = 5206707072. Its totient is φ = 605081280.

The previous prime is 2021130011. The next prime is 2021130047. The reversal of 2021130012 is 2100311202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2021130012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021130011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81283 + ... + 103194.

It is an arithmetic number, because the mean of its divisors is an integer number (108473064).

Almost surely, 2^2021130012 is an apocalyptic number.

2021130012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2021130012 is an abundant number, since it is smaller than the sum of its proper divisors (3185577060).

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

2021130012 is a wasteful number, since it uses less digits than its factorization.

2021130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184578 (or 184576 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2021130012 is about 44956.9795693616. The cubic root of 2021130012 is about 1264.3425397221.

Adding to 2021130012 its reverse (2100311202), we get a palindrome (4121441214).

The spelling of 2021130012 in words is "two billion, twenty-one million, one hundred thirty thousand, twelve".