2021220313 has 8 divisors (see below), whose sum is σ = 2325470400. Its totient is φ = 1720846320.

The previous prime is 2021220301. The next prime is 2021220319. The reversal of 2021220313 is 3130221202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021220313 - 2⁵ = 2021220281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021220319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967903 + ... + 969988.

It is an arithmetic number, because the mean of its divisors is an integer number (290683800).

Almost surely, 2^2021220313 is an apocalyptic number.

It is an amenable number.

2021220313 is a deficient number, since it is larger than the sum of its proper divisors (304250087).

2021220313 is a wasteful number, since it uses less digits than its factorization.

2021220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938047.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2021220313 is about 44957.9838627134. The cubic root of 2021220313 is about 1264.3613690724.

Adding to 2021220313 its reverse (3130221202), we get a palindrome (5151441515).

The spelling of 2021220313 in words is "two billion, twenty-one million, two hundred twenty thousand, three hundred thirteen".