202026121 has 4 divisors (see below), whose sum is σ = 220392144. Its totient is φ = 183660100.

The previous prime is 202026119. The next prime is 202026127. The reversal of 202026121 is 121620202.

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 a cyclic number.

It is not a de Polignac number, because 202026121 - 2¹ = 202026119 is a prime.

It is a super-3 number, since 3×202026121³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202026095 and 202026104.

It is not an unprimeable number, because it can be changed into a prime (202026127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9182995 + ... + 9183016.

It is an arithmetic number, because the mean of its divisors is an integer number (55098036).

Almost surely, 2^202026121 is an apocalyptic number.

It is an amenable number.

202026121 is a deficient number, since it is larger than the sum of its proper divisors (18366023).

202026121 is a wasteful number, since it uses less digits than its factorization.

202026121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18366022.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 202026121 is about 14213.5893074199. The cubic root of 202026121 is about 586.7717208491.

Adding to 202026121 its reverse (121620202), we get a palindrome (323646323).

The spelling of 202026121 in words is "two hundred two million, twenty-six thousand, one hundred twenty-one".