220111222221211 has 32 divisors (see below), whose sum is σ = 232543236280320. Its totient is φ = 208035976579200.

The previous prime is 220111222221181. The next prime is 220111222221217. The reversal of 220111222221211 is 112122222111022.

It is not a de Polignac number, because 220111222221211 - 2⁷ = 220111222221083 is a prime.

It is a super-2 number, since 2×220111222221211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220111222221217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1310796346 + ... + 1310964256.

It is an arithmetic number, because the mean of its divisors is an integer number (7266976133760).

Almost surely, 2^{220111222221211} is an apocalyptic number.

220111222221211 is a deficient number, since it is larger than the sum of its proper divisors (12432014059109).

220111222221211 is a wasteful number, since it uses less digits than its factorization.

220111222221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171547.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 220111222221211 its reverse (112122222111022), we get a palindrome (332233444332233).

The spelling of 220111222221211 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred eleven".