242010112121 has 2 divisors, whose sum is σ = 242010112122. Its totient is φ = 242010112120.

The previous prime is 242010112111. The next prime is 242010112163. The reversal of 242010112121 is 121211010242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178304352121 + 63705760000 = 422261^2 + 252400^2 .

It is a cyclic number.

It is not a de Polignac number, because 242010112121 - 2¹⁴ = 242010095737 is a prime.

It is a super-2 number, since 2×242010112121² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242010112121.

It is not a weakly prime, because it can be changed into another prime (242010112111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121005056060 + 121005056061.

It is an arithmetic number, because the mean of its divisors is an integer number (121005056061).

Almost surely, 2^242010112121 is an apocalyptic number.

It is an amenable number.

242010112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

242010112121 is an equidigital number, since it uses as much as digits as its factorization.

242010112121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 242010112121 its reverse (121211010242), we get a palindrome (363221122363).

The spelling of 242010112121 in words is "two hundred forty-two billion, ten million, one hundred twelve thousand, one hundred twenty-one".