2020121111005 has 8 divisors (see below), whose sum is σ = 2489662774872. Its totient is φ = 1572418594368.

The previous prime is 2020121110967. The next prime is 2020121111027. The reversal of 2020121111005 is 5001111210202.

It can be written as a sum of positive squares in 4 ways, for example, as 240749198244 + 1779371912761 = 490662^2 + 1333931^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2020121111005 - 2²⁵ = 2020087556573 is a prime.

It is a super-2 number, since 2×2020121111005² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020121111005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5459786602 + ... + 5459786971.

It is an arithmetic number, because the mean of its divisors is an integer number (311207846859).

Almost surely, 2^{2020121111005} is an apocalyptic number.

It is an amenable number.

2020121111005 is a deficient number, since it is larger than the sum of its proper divisors (469541663867).

2020121111005 is a wasteful number, since it uses less digits than its factorization.

2020121111005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10919573615.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 2020121111005 its reverse (5001111210202), we get a palindrome (7021232321207).

The spelling of 2020121111005 in words is "two trillion, twenty billion, one hundred twenty-one million, one hundred eleven thousand, five".