1001121204241 has 2 divisors, whose sum is σ = 1001121204242. Its totient is φ = 1001121204240.

The previous prime is 1001121204233. The next prime is 1001121204247. The reversal of 1001121204241 is 1424021211001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 926521753600 + 74599450641 = 962560^2 + 273129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001121204241 - 2³ = 1001121204233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001121204247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500560602120 + 500560602121.

It is an arithmetic number, because the mean of its divisors is an integer number (500560602121).

Almost surely, 2^{1001121204241} is an apocalyptic number.

It is an amenable number.

1001121204241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001121204241 is an equidigital number, since it uses as much as digits as its factorization.

1001121204241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1001121204241 its reverse (1424021211001), we get a palindrome (2425142415242).

The spelling of 1001121204241 in words is "one trillion, one billion, one hundred twenty-one million, two hundred four thousand, two hundred forty-one".