220300000121 has 2 divisors, whose sum is σ = 220300000122. Its totient is φ = 220300000120.

The previous prime is 220300000111. The next prime is 220300000157. The reversal of 220300000121 is 121000003022.

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., 214680248896 + 5619751225 = 463336^2 + 74965^2 .

It is a cyclic number.

It is not a de Polignac number, because 220300000121 - 2⁶ = 220300000057 is a prime.

It is a super-3 number, since 3×220300000121³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (220300000111) 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, 110150000060 + 110150000061.

It is an arithmetic number, because the mean of its divisors is an integer number (110150000061).

Almost surely, 2^220300000121 is an apocalyptic number.

It is an amenable number.

220300000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

220300000121 is an equidigital number, since it uses as much as digits as its factorization.

220300000121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 220300000121 its reverse (121000003022), we get a palindrome (341300003143).

The spelling of 220300000121 in words is "two hundred twenty billion, three hundred million, one hundred twenty-one", and thus it is an aban number.