220304222243021 has 32 divisors (see below), whose sum is σ = 262868421623808. Its totient is φ = 180658345230720.

The previous prime is 220304222243011. The next prime is 220304222243041. The reversal of 220304222243021 is 120342222403022.

It is a happy number.

It is not a de Polignac number, because 220304222243021 - 2⁴⁶ = 149935478065357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220304222243011) 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 in 31 ways as a sum of consecutive naturals, for example, 4724321 + ... + 21515753.

It is an arithmetic number, because the mean of its divisors is an integer number (8214638175744).

Almost surely, 2^{220304222243021} is an apocalyptic number.

It is an amenable number.

220304222243021 is a deficient number, since it is larger than the sum of its proper divisors (42564199380787).

220304222243021 is a wasteful number, since it uses less digits than its factorization.

220304222243021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16792161.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 220304222243021 its reverse (120342222403022), we get a palindrome (340646444646043).

The spelling of 220304222243021 in words is "two hundred twenty trillion, three hundred four billion, two hundred twenty-two million, two hundred forty-three thousand, twenty-one".