2021223230 has 32 divisors (see below), whose sum is σ = 4124282400. Its totient is φ = 707018112.

The previous prime is 2021223131. The next prime is 2021223277. The reversal of 2021223230 is 323221202.

It is a junction number, because it is equal to n+sod(n) for n = 2021223199 and 2021223208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406685 + ... + 411624.

It is an arithmetic number, because the mean of its divisors is an integer number (128883825).

Almost surely, 2^2021223230 is an apocalyptic number.

2021223230 is an abundant number, since it is smaller than the sum of its proper divisors (2103059170).

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

2021223230 is a wasteful number, since it uses less digits than its factorization.

2021223230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818348.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2021223230 is about 44958.0163041031. The cubic root of 2021223230 is about 1264.3619773090.

Adding to 2021223230 its reverse (323221202), we get a palindrome (2344444432).

The spelling of 2021223230 in words is "two billion, twenty-one million, two hundred twenty-three thousand, two hundred thirty".