2021002223 has 4 divisors (see below), whose sum is σ = 2041012248. Its totient is φ = 2000992200.

The previous prime is 2021002219. The next prime is 2021002267. The reversal of 2021002223 is 3222001202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021002223 - 2² = 2021002219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021002198 and 2021002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021002213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10004861 + ... + 10005062.

It is an arithmetic number, because the mean of its divisors is an integer number (510253062).

Almost surely, 2^2021002223 is an apocalyptic number.

2021002223 is a deficient number, since it is larger than the sum of its proper divisors (20010025).

2021002223 is a wasteful number, since it uses less digits than its factorization.

2021002223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20010024.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2021002223 is about 44955.5583104025. The cubic root of 2021002223 is about 1264.3158925044.

Adding to 2021002223 its reverse (3222001202), we get a palindrome (5243003425).

The spelling of 2021002223 in words is "two billion, twenty-one million, two thousand, two hundred twenty-three".