20022020121021 has 8 divisors (see below), whose sum is σ = 26696171292000. Its totient is φ = 13347941182032.

The previous prime is 20022020121013. The next prime is 20022020121071. The reversal of 20022020121021 is 12012102022002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20022020121021 - 2³ = 20022020121013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022020121071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17407875 + ... + 18522368.

It is an arithmetic number, because the mean of its divisors is an integer number (3337021411500).

Almost surely, 2^{20022020121021} is an apocalyptic number.

It is an amenable number.

20022020121021 is a deficient number, since it is larger than the sum of its proper divisors (6674151170979).

20022020121021 is a wasteful number, since it uses less digits than its factorization.

20022020121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36115995.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20022020121021 its reverse (12012102022002), we get a palindrome (32034122143023).

The spelling of 20022020121021 in words is "twenty trillion, twenty-two billion, twenty million, one hundred twenty-one thousand, twenty-one".