20202002110121 has 16 divisors (see below), whose sum is σ = 22112970877200. Its totient is φ = 18342037509120.

The previous prime is 20202002110111. The next prime is 20202002110153. The reversal of 20202002110121 is 12101120020202.

It can be written as a sum of positive squares in 8 ways, for example, as 3031429210000 + 17170572900121 = 1741100^2 + 4143739^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20202002110121 is a prime.

It is a super-2 number, since 2×20202002110121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202002110096 and 20202002110105.

It is not an unprimeable number, because it can be changed into a prime (20202002110111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76434605 + ... + 76698453.

It is an arithmetic number, because the mean of its divisors is an integer number (1382060679825).

Almost surely, 2^{20202002110121} is an apocalyptic number.

It is an amenable number.

20202002110121 is a deficient number, since it is larger than the sum of its proper divisors (1910968767079).

20202002110121 is a wasteful number, since it uses less digits than its factorization.

20202002110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360476.

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

Adding to 20202002110121 its reverse (12101120020202), we get a palindrome (32303122130323).

The spelling of 20202002110121 in words is "twenty trillion, two hundred two billion, two million, one hundred ten thousand, one hundred twenty-one".