220201121002111 has 4 divisors (see below), whose sum is σ = 220588117700400. Its totient is φ = 219814124303824.

The previous prime is 220201121002087. The next prime is 220201121002127. The reversal of 220201121002111 is 111200121102022.

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-220201121002111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201121005111) 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, 193498348291 + ... + 193498349428.

It is an arithmetic number, because the mean of its divisors is an integer number (55147029425100).

Almost surely, 2^{220201121002111} is an apocalyptic number.

220201121002111 is a deficient number, since it is larger than the sum of its proper divisors (386996698289).

220201121002111 is an equidigital number, since it uses as much as digits as its factorization.

220201121002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386996698288.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220201121002111 its reverse (111200121102022), we get a palindrome (331401242104133).

The spelling of 220201121002111 in words is "two hundred twenty trillion, two hundred one billion, one hundred twenty-one million, two thousand, one hundred eleven".