220020121212211 has 2 divisors, whose sum is σ = 220020121212212. Its totient is φ = 220020121212210.

The previous prime is 220020121212187. The next prime is 220020121212239. The reversal of 220020121212211 is 112212121020022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220020121212211 - 2²¹ = 220020119115059 is a prime.

It is a super-3 number, since 3×220020121212211³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (220020122212211) 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, 110010060606105 + 110010060606106.

It is an arithmetic number, because the mean of its divisors is an integer number (110010060606106).

Almost surely, 2^{220020121212211} is an apocalyptic number.

220020121212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

220020121212211 is an equidigital number, since it uses as much as digits as its factorization.

220020121212211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220020121212211 its reverse (112212121020022), we get a palindrome (332232242232233).

The spelling of 220020121212211 in words is "two hundred twenty trillion, twenty billion, one hundred twenty-one million, two hundred twelve thousand, two hundred eleven".