220220212221211 has 4 divisors (see below), whose sum is σ = 223236927457192. Its totient is φ = 217203496985232.

The previous prime is 220220212221173. The next prime is 220220212221253. The reversal of 220220212221211 is 112122212022022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220220212221211 - 2¹³ = 220220212213019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220220212221811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508357617881 + ... + 1508357618026.

It is an arithmetic number, because the mean of its divisors is an integer number (55809231864298).

Almost surely, 2^{220220212221211} is an apocalyptic number.

220220212221211 is a deficient number, since it is larger than the sum of its proper divisors (3016715235981).

220220212221211 is an equidigital number, since it uses as much as digits as its factorization.

220220212221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016715235980.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 220220212221211 its reverse (112122212022022), we get a palindrome (332342424243233).

The spelling of 220220212221211 in words is "two hundred twenty trillion, two hundred twenty billion, two hundred twelve million, two hundred twenty-one thousand, two hundred eleven".