2021221000223 has 2 divisors, whose sum is σ = 2021221000224. Its totient is φ = 2021221000222.

The previous prime is 2021221000151. The next prime is 2021221000289. The reversal of 2021221000223 is 3220001221202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021221000223 - 2¹⁰ = 2021220999199 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021221003223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010610500111 + 1010610500112.

It is an arithmetic number, because the mean of its divisors is an integer number (1010610500112).

Almost surely, 2^{2021221000223} is an apocalyptic number.

2021221000223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021221000223 is an equidigital number, since it uses as much as digits as its factorization.

2021221000223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2021221000223 its reverse (3220001221202), we get a palindrome (5241222221425).

The spelling of 2021221000223 in words is "two trillion, twenty-one billion, two hundred twenty-one million, two hundred twenty-three", and thus it is an aban number.