202002110121 has 16 divisors (see below), whose sum is σ = 308863304064. Its totient is φ = 115035815424.

The previous prime is 202002110119. The next prime is 202002110147. The reversal of 202002110121 is 121011200202.

It is not a de Polignac number, because 202002110121 - 2¹ = 202002110119 is a prime.

It is a super-2 number, since 2×202002110121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202002110097 and 202002110106.

It is not an unprimeable number, because it can be changed into a prime (202002110021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16408776 + ... + 16421081.

It is an arithmetic number, because the mean of its divisors is an integer number (19303956504).

Almost surely, 2^202002110121 is an apocalyptic number.

202002110121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202002110121 is a deficient number, since it is larger than the sum of its proper divisors (106861193943).

202002110121 is a wasteful number, since it uses less digits than its factorization.

202002110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32830160.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 202002110121 its reverse (121011200202), we get a palindrome (323013310323).

The spelling of 202002110121 in words is "two hundred two billion, two million, one hundred ten thousand, one hundred twenty-one".