220101021111211 has 4 divisors (see below), whose sum is σ = 220112985092272. Its totient is φ = 220089057130152.

The previous prime is 220101021111199. The next prime is 220101021111221. The reversal of 220101021111211 is 112111120101022.

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 220101021111211 - 2²³ = 220101012722603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220101021111221) 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 in 3 ways as a sum of consecutive naturals, for example, 5981962935 + ... + 5981999728.

It is an arithmetic number, because the mean of its divisors is an integer number (55028246273068).

Almost surely, 2^{220101021111211} is an apocalyptic number.

220101021111211 is a deficient number, since it is larger than the sum of its proper divisors (11963981061).

220101021111211 is a wasteful number, since it uses less digits than its factorization.

220101021111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11963981060.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 220101021111211 its reverse (112111120101022), we get a palindrome (332212141212233).

The spelling of 220101021111211 in words is "two hundred twenty trillion, one hundred one billion, twenty-one million, one hundred eleven thousand, two hundred eleven".