221021122010023 has 2 divisors, whose sum is σ = 221021122010024. Its totient is φ = 221021122010022.

The previous prime is 221021122009999. The next prime is 221021122010047. The reversal of 221021122010023 is 320010221120122.

It is a balanced prime because it is at equal distance from previous prime (221021122009999) and next prime (221021122010047).

It is a cyclic number.

It is not a de Polignac number, because 221021122010023 - 2⁹ = 221021122009511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221021122010093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110510561005011 + 110510561005012.

It is an arithmetic number, because the mean of its divisors is an integer number (110510561005012).

Almost surely, 2^{221021122010023} is an apocalyptic number.

221021122010023 is a deficient number, since it is larger than the sum of its proper divisors (1).

221021122010023 is an equidigital number, since it uses as much as digits as its factorization.

221021122010023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221021122010023 its reverse (320010221120122), we get a palindrome (541031343130145).

The spelling of 221021122010023 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred twenty-two million, ten thousand, twenty-three".