220212222211 has 4 divisors (see below), whose sum is σ = 220213221552. Its totient is φ = 220211222872.

The previous prime is 220212222199. The next prime is 220212222229. The reversal of 220212222211 is 112222212022.

220212222211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 220212222211 - 2¹⁷ = 220212091139 is a prime.

It is a super-2 number, since 2×220212222211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220212222011) 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, 7615 + ... + 663688.

It is an arithmetic number, because the mean of its divisors is an integer number (55053305388).

Almost surely, 2^220212222211 is an apocalyptic number.

220212222211 is a deficient number, since it is larger than the sum of its proper divisors (999341).

220212222211 is an equidigital number, since it uses as much as digits as its factorization.

220212222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999340.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220212222211 its reverse (112222212022), we get a palindrome (332434434233).

The spelling of 220212222211 in words is "two hundred twenty billion, two hundred twelve million, two hundred twenty-two thousand, two hundred eleven".