220020212011 has 4 divisors (see below), whose sum is σ = 223034187592. Its totient is φ = 217006236432.

The previous prime is 220020211991. The next prime is 220020212023. The reversal of 220020212011 is 110212020022.

It is a happy number.

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 220020212011 - 2⁷ = 220020211883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220020211982 and 220020212000.

It is not an unprimeable number, because it can be changed into a prime (220020212081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506987681 + ... + 1506987826.

It is an arithmetic number, because the mean of its divisors is an integer number (55758546898).

Almost surely, 2^220020212011 is an apocalyptic number.

220020212011 is a deficient number, since it is larger than the sum of its proper divisors (3013975581).

220020212011 is an equidigital number, since it uses as much as digits as its factorization.

220020212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013975580.

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

Adding to 220020212011 its reverse (110212020022), we get a palindrome (330232232033).

The spelling of 220020212011 in words is "two hundred twenty billion, twenty million, two hundred twelve thousand, eleven".