20020022121009 has 4 divisors (see below), whose sum is σ = 26693362828016. Its totient is φ = 13346681414004.

The previous prime is 20020022120999. The next prime is 20020022121041. The reversal of 20020022121009 is 90012122002002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20020022121009 - 2⁵ = 20020022120977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020022125009) 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, 3336670353499 + ... + 3336670353504.

It is an arithmetic number, because the mean of its divisors is an integer number (6673340707004).

Almost surely, 2^{20020022121009} is an apocalyptic number.

It is an amenable number.

20020022121009 is a deficient number, since it is larger than the sum of its proper divisors (6673340707007).

20020022121009 is an equidigital number, since it uses as much as digits as its factorization.

20020022121009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673340707006.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 20020022121009 in words is "twenty trillion, twenty billion, twenty-two million, one hundred twenty-one thousand, nine".