20020220120011 has 4 divisors (see below), whose sum is σ = 20446182250272. Its totient is φ = 19594257989752.

The previous prime is 20020220120009. The next prime is 20020220120039. The reversal of 20020220120011 is 11002102202002.

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 20020220120011 - 2¹ = 20020220120009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020220119973 and 20020220120000.

It is not an unprimeable number, because it can be changed into a prime (20020220120611) 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, 212981065060 + ... + 212981065153.

It is an arithmetic number, because the mean of its divisors is an integer number (5111545562568).

Almost surely, 2^{20020220120011} is an apocalyptic number.

20020220120011 is a deficient number, since it is larger than the sum of its proper divisors (425962130261).

20020220120011 is an equidigital number, since it uses as much as digits as its factorization.

20020220120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425962130260.

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

Adding to 20020220120011 its reverse (11002102202002), we get a palindrome (31022322322013).

The spelling of 20020220120011 in words is "twenty trillion, twenty billion, two hundred twenty million, one hundred twenty thousand, eleven".