1001121022049 has 2 divisors, whose sum is σ = 1001121022050. Its totient is φ = 1001121022048.

The previous prime is 1001121021991. The next prime is 1001121022133. The reversal of 1001121022049 is 9402201211001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 919249500625 + 81871521424 = 958775^2 + 286132^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001121022049 - 2⁸ = 1001121021793 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001121028049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500560511024 + 500560511025.

It is an arithmetic number, because the mean of its divisors is an integer number (500560511025).

Almost surely, 2^{1001121022049} is an apocalyptic number.

It is an amenable number.

1001121022049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001121022049 is an equidigital number, since it uses as much as digits as its factorization.

1001121022049 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 23.

The spelling of 1001121022049 in words is "one trillion, one billion, one hundred twenty-one million, twenty-two thousand, forty-nine".