2021210212223 has 8 divisors (see below), whose sum is σ = 2058633655680. Its totient is φ = 1983925118880.

The previous prime is 2021210212129. The next prime is 2021210212291. The reversal of 2021210212223 is 3222120121202.

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 2021210212223 - 2¹⁴ = 2021210195839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021210212195 and 2021210212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021210215223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34558040 + ... + 34616477.

It is an arithmetic number, because the mean of its divisors is an integer number (257329206960).

Almost surely, 2^{2021210212223} is an apocalyptic number.

2021210212223 is a deficient number, since it is larger than the sum of its proper divisors (37423443457).

2021210212223 is an equidigital number, since it uses as much as digits as its factorization.

2021210212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69175057.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2021210212223 its reverse (3222120121202), we get a palindrome (5243330333425).

The spelling of 2021210212223 in words is "two trillion, twenty-one billion, two hundred ten million, two hundred twelve thousand, two hundred twenty-three".