1000121022049 has 2 divisors, whose sum is σ = 1000121022050. Its totient is φ = 1000121022048.

The previous prime is 1000121021993. The next prime is 1000121022053. The reversal of 1000121022049 is 9402201210001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640832270400 + 359288751649 = 800520^2 + 599407^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000121022049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000121022059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500060511024 + 500060511025.

It is an arithmetic number, because the mean of its divisors is an integer number (500060511025).

Almost surely, 2^{1000121022049} is an apocalyptic number.

It is an amenable number.

1000121022049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000121022049 is an equidigital number, since it uses as much as digits as its factorization.

1000121022049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 1000121022049 in words is "one trillion, one hundred twenty-one million, twenty-two thousand, forty-nine".