2021130252 has 48 divisors (see below), whose sum is σ = 5247155200. Its totient is φ = 672786000.

The previous prime is 2021130227. The next prime is 2021130257. The reversal of 2021130252 is 2520311202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (2021130257) 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, 68649 + ... + 93567.

Almost surely, 2^2021130252 is an apocalyptic number.

It is an amenable number.

2021130252 is an abundant number, since it is smaller than the sum of its proper divisors (3226024948).

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

2021130252 is a wasteful number, since it uses less digits than its factorization.

2021130252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25683 (or 25675 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2021130252 is about 44956.9822385800. The cubic root of 2021130252 is about 1264.3425897670.

Adding to 2021130252 its reverse (2520311202), we get a palindrome (4541441454).

The spelling of 2021130252 in words is "two billion, twenty-one million, one hundred thirty thousand, two hundred fifty-two".