220201020020011 has 4 divisors (see below), whose sum is σ = 220272816899512. Its totient is φ = 220129223140512.

The previous prime is 220201020019927. The next prime is 220201020020027. The reversal of 220201020020011 is 110020020102022.

It is a happy number.

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-220201020020011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220201020019973 and 220201020020000.

It is not an unprimeable number, because it can be changed into a prime (220201020080011) 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, 35898435150 + ... + 35898441283.

It is an arithmetic number, because the mean of its divisors is an integer number (55068204224878).

Almost surely, 2^{220201020020011} is an apocalyptic number.

220201020020011 is a deficient number, since it is larger than the sum of its proper divisors (71796879501).

220201020020011 is an equidigital number, since it uses as much as digits as its factorization.

220201020020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71796879500.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220201020020011 its reverse (110020020102022), we get a palindrome (330221040122033).

The spelling of 220201020020011 in words is "two hundred twenty trillion, two hundred one billion, twenty million, twenty thousand, eleven".