202441012121 has 2 divisors, whose sum is σ = 202441012122. Its totient is φ = 202441012120.

The previous prime is 202441012091. The next prime is 202441012141. The reversal of 202441012121 is 121210144202.

It is an a-pointer prime, because the next prime (202441012141) can be obtained adding 202441012121 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202085312521 + 355699600 = 449539^2 + 18860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202441012121 is a prime.

It is a super-3 number, since 3×202441012121³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202441012093 and 202441012102.

It is not a weakly prime, because it can be changed into another prime (202441012141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101220506060 + 101220506061.

It is an arithmetic number, because the mean of its divisors is an integer number (101220506061).

Almost surely, 2^202441012121 is an apocalyptic number.

It is an amenable number.

202441012121 is a deficient number, since it is larger than the sum of its proper divisors (1).

202441012121 is an equidigital number, since it uses as much as digits as its factorization.

202441012121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202441012121 its reverse (121210144202), we get a palindrome (323651156323).

The spelling of 202441012121 in words is "two hundred two billion, four hundred forty-one million, twelve thousand, one hundred twenty-one".