2130021012 has 96 divisors (see below), whose sum is σ = 5942845440. Its totient is φ = 581057280.

The previous prime is 2130020987. The next prime is 2130021037. The reversal of 2130021012 is 2101200312.

It is an interprime number because it is at equal distance from previous prime (2130020987) and next prime (2130021037).

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

It is a congruent number.

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, 155289 + ... + 168447.

It is an arithmetic number, because the mean of its divisors is an integer number (61904640).

Almost surely, 2^2130021012 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 2130021012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2971422720).

2130021012 is an abundant number, since it is smaller than the sum of its proper divisors (3812824428).

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

2130021012 is a wasteful number, since it uses less digits than its factorization.

2130021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13261 (or 13259 counting only the distinct ones).

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

The square root of 2130021012 is about 46152.1506757811. The cubic root of 2130021012 is about 1286.6525820479.

Adding to 2130021012 its reverse (2101200312), we get a palindrome (4231221324).

The spelling of 2130021012 in words is "two billion, one hundred thirty million, twenty-one thousand, twelve".