12022020020221 has 2 divisors, whose sum is σ = 12022020020222. Its totient is φ = 12022020020220.

The previous prime is 12022020020203. The next prime is 12022020020249. The reversal of 12022020020221 is 12202002022021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9047378188996 + 2974641831225 = 3007886^2 + 1724715^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022020020221 - 2¹³ = 12022020012029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12022020020195 and 12022020020204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12022020020821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011010010110 + 6011010010111.

It is an arithmetic number, because the mean of its divisors is an integer number (6011010010111).

Almost surely, 2^{12022020020221} is an apocalyptic number.

It is an amenable number.

12022020020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022020020221 is an equidigital number, since it uses as much as digits as its factorization.

12022020020221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12022020020221 its reverse (12202002022021), we get a palindrome (24224022042242).

The spelling of 12022020020221 in words is "twelve trillion, twenty-two billion, twenty million, twenty thousand, two hundred twenty-one".