2221021111223 has 2 divisors, whose sum is σ = 2221021111224. Its totient is φ = 2221021111222.

The previous prime is 2221021111189. The next prime is 2221021111241. The reversal of 2221021111223 is 3221111201222.

2221021111223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221021111223 - 2³⁶ = 2152301634487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221021111195 and 2221021111204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221021111823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110510555611 + 1110510555612.

It is an arithmetic number, because the mean of its divisors is an integer number (1110510555612).

Almost surely, 2^{2221021111223} is an apocalyptic number.

2221021111223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221021111223 is an equidigital number, since it uses as much as digits as its factorization.

2221021111223 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 20.

Adding to 2221021111223 its reverse (3221111201222), we get a palindrome (5442132312445).

The spelling of 2221021111223 in words is "two trillion, two hundred twenty-one billion, twenty-one million, one hundred eleven thousand, two hundred twenty-three".