2021224213 has 4 divisors (see below), whose sum is σ = 2033327520. Its totient is φ = 2009120908.

The previous prime is 2021224193. The next prime is 2021224259. The reversal of 2021224213 is 3124221202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2021224213 - 2²⁹ = 1484353301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021924213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6051403 + ... + 6051736.

It is an arithmetic number, because the mean of its divisors is an integer number (508331880).

Almost surely, 2^2021224213 is an apocalyptic number.

It is an amenable number.

2021224213 is a deficient number, since it is larger than the sum of its proper divisors (12103307).

2021224213 is a wasteful number, since it uses less digits than its factorization.

2021224213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12103306.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2021224213 is about 44958.0272365236. The cubic root of 2021224213 is about 1264.3621822785.

Adding to 2021224213 its reverse (3124221202), we get a palindrome (5145445415).

The spelling of 2021224213 in words is "two billion, twenty-one million, two hundred twenty-four thousand, two hundred thirteen".