12022020011 has 4 divisors (see below), whose sum is σ = 12024070800. Its totient is φ = 12019969224.

The previous prime is 12022019981. The next prime is 12022020013. The reversal of 12022020011 is 11002022021.

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-12022020011 is a prime.

It is a super-3 number, since 3×12022020011³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022019974 and 12022020001.

It is not an unprimeable number, because it can be changed into a prime (12022020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016576 + ... + 1028333.

It is an arithmetic number, because the mean of its divisors is an integer number (3006017700).

Almost surely, 2^12022020011 is an apocalyptic number.

12022020011 is a deficient number, since it is larger than the sum of its proper divisors (2050789).

12022020011 is an equidigital number, since it uses as much as digits as its factorization.

12022020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050788.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12022020011 its reverse (11002022021), we get a palindrome (23024042032).

The spelling of 12022020011 in words is "twelve billion, twenty-two million, twenty thousand, eleven".