20022011210221 has 2 divisors, whose sum is σ = 20022011210222. Its totient is φ = 20022011210220.

The previous prime is 20022011210209. The next prime is 20022011210239. The reversal of 20022011210221 is 12201211022002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15868383788196 + 4153627422025 = 3983514^2 + 2038045^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022011210221 - 2⁷ = 20022011210093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20022011210195 and 20022011210204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022011210291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011005605110 + 10011005605111.

It is an arithmetic number, because the mean of its divisors is an integer number (10011005605111).

Almost surely, 2^{20022011210221} is an apocalyptic number.

It is an amenable number.

20022011210221 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022011210221 is an equidigital number, since it uses as much as digits as its factorization.

20022011210221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20022011210221 its reverse (12201211022002), we get a palindrome (32223222232223).

The spelling of 20022011210221 in words is "twenty trillion, twenty-two billion, eleven million, two hundred ten thousand, two hundred twenty-one".