2021213130 has 64 divisors (see below), whose sum is σ = 5143253760. Its totient is φ = 506594304.

The previous prime is 2021213093. The next prime is 2021213137. The reversal of 2021213130 is 313121202.

2021213130 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2021213137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 445011 + ... + 449529.

It is an arithmetic number, because the mean of its divisors is an integer number (80363340).

Almost surely, 2^2021213130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021213130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2571626880).

2021213130 is an abundant number, since it is smaller than the sum of its proper divisors (3122040630).

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

2021213130 is a wasteful number, since it uses less digits than its factorization.

2021213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2021213130 is about 44957.9039769427. The cubic root of 2021213130 is about 1264.3598713108.

Adding to 2021213130 its reverse (313121202), we get a palindrome (2334334332).

The spelling of 2021213130 in words is "two billion, twenty-one million, two hundred thirteen thousand, one hundred thirty".