22221021023 has 2 divisors, whose sum is σ = 22221021024. Its totient is φ = 22221021022.

The previous prime is 22221021001. The next prime is 22221021089. The reversal of 22221021023 is 32012012222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22221021023 - 2¹⁴ = 22221004639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22221020992 and 22221021010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221041023) 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 as a sum of consecutive naturals, namely, 11110510511 + 11110510512.

It is an arithmetic number, because the mean of its divisors is an integer number (11110510512).

Almost surely, 2^22221021023 is an apocalyptic number.

22221021023 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221021023 is an equidigital number, since it uses as much as digits as its factorization.

22221021023 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 22221021023 its reverse (32012012222), we get a palindrome (54233033245).

The spelling of 22221021023 in words is "twenty-two billion, two hundred twenty-one million, twenty-one thousand, twenty-three".