220000010120221 has 2 divisors, whose sum is σ = 220000010120222. Its totient is φ = 220000010120220.

The previous prime is 220000010120213. The next prime is 220000010120239. The reversal of 220000010120221 is 122021010000022.

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., 132159740405625 + 87840269714596 = 11496075^2 + 9372314^2 .

It is a cyclic number.

It is not a de Polignac number, because 220000010120221 - 2³ = 220000010120213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220000010120201) 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, 110000005060110 + 110000005060111.

It is an arithmetic number, because the mean of its divisors is an integer number (110000005060111).

Almost surely, 2^{220000010120221} is an apocalyptic number.

It is an amenable number.

220000010120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

220000010120221 is an equidigital number, since it uses as much as digits as its factorization.

220000010120221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220000010120221 its reverse (122021010000022), we get a palindrome (342021020120243).

The spelling of 220000010120221 in words is "two hundred twenty trillion, ten million, one hundred twenty thousand, two hundred twenty-one".