20021022120011 has 16 divisors (see below), whose sum is σ = 21859184164608. Its totient is φ = 18185877760800.

The previous prime is 20021022119953. The next prime is 20021022120017. The reversal of 20021022120011 is 11002122012002.

It is a cyclic number.

It is not a de Polignac number, because 20021022120011 - 2¹⁴ = 20021022103627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021022120017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65861810 + ... + 66165096.

It is an arithmetic number, because the mean of its divisors is an integer number (1366199010288).

Almost surely, 2^{20021022120011} is an apocalyptic number.

20021022120011 is a deficient number, since it is larger than the sum of its proper divisors (1838162044597).

20021022120011 is a wasteful number, since it uses less digits than its factorization.

20021022120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308242.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20021022120011 its reverse (11002122012002), we get a palindrome (31023144132013).

The spelling of 20021022120011 in words is "twenty trillion, twenty-one billion, twenty-two million, one hundred twenty thousand, eleven".