2021212200223 has 4 divisors (see below), whose sum is σ = 2021955568960. Its totient is φ = 2020468831488.

The previous prime is 2021212200221. The next prime is 2021212200239. The reversal of 2021212200223 is 3220022121202.

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 2021212200223 - 2¹ = 2021212200221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021212200223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021212200221) 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 3 ways as a sum of consecutive naturals, for example, 371680290 + ... + 371685727.

It is an arithmetic number, because the mean of its divisors is an integer number (505488892240).

Almost surely, 2^{2021212200223} is an apocalyptic number.

2021212200223 is a deficient number, since it is larger than the sum of its proper divisors (743368737).

2021212200223 is an equidigital number, since it uses as much as digits as its factorization.

2021212200223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743368736.

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

Adding to 2021212200223 its reverse (3220022121202), we get a palindrome (5241234321425).

The spelling of 2021212200223 in words is "two trillion, twenty-one billion, two hundred twelve million, two hundred thousand, two hundred twenty-three".