2021210223 has 24 divisors (see below), whose sum is σ = 2869276032. Its totient is φ = 1265341824.

The previous prime is 2021210221. The next prime is 2021210237. The reversal of 2021210223 is 3220121202.

It is a happy number.

It is not a de Polignac number, because 2021210223 - 2¹ = 2021210221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021210221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419836 + ... + 424622.

It is an arithmetic number, because the mean of its divisors is an integer number (119553168).

Almost surely, 2^2021210223 is an apocalyptic number.

2021210223 is a deficient number, since it is larger than the sum of its proper divisors (848065809).

2021210223 is a wasteful number, since it uses less digits than its factorization.

2021210223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311 (or 5294 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2021210223 is about 44957.8716466872. The cubic root of 2021210223 is about 1264.3592651574.

Adding to 2021210223 its reverse (3220121202), we get a palindrome (5241331425).

The spelling of 2021210223 in words is "two billion, twenty-one million, two hundred ten thousand, two hundred twenty-three".