220001120221211 has 4 divisors (see below), whose sum is σ = 251429851681392. Its totient is φ = 188572388761032.

The previous prime is 220001120221121. The next prime is 220001120221219. The reversal of 220001120221211 is 112122021100022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220001120221211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220001120221211.

It is not an unprimeable number, because it can be changed into a prime (220001120221219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15714365730080 + ... + 15714365730093.

It is an arithmetic number, because the mean of its divisors is an integer number (62857462920348).

Almost surely, 2^{220001120221211} is an apocalyptic number.

220001120221211 is a deficient number, since it is larger than the sum of its proper divisors (31428731460181).

220001120221211 is an equidigital number, since it uses as much as digits as its factorization.

220001120221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31428731460180.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220001120221211 its reverse (112122021100022), we get a palindrome (332123141321233).

The spelling of 220001120221211 in words is "two hundred twenty trillion, one billion, one hundred twenty million, two hundred twenty-one thousand, two hundred eleven".