1011221010049 has 2 divisors, whose sum is σ = 1011221010050. Its totient is φ = 1011221010048.

The previous prime is 1011221009969. The next prime is 1011221010061. The reversal of 1011221010049 is 9400101221101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1007500010049 + 3721000000 = 1003743^2 + 61000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011221010049 - 2¹¹ = 1011221008001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011221010089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505610505024 + 505610505025.

It is an arithmetic number, because the mean of its divisors is an integer number (505610505025).

Almost surely, 2^{1011221010049} is an apocalyptic number.

It is an amenable number.

1011221010049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011221010049 is an equidigital number, since it uses as much as digits as its factorization.

1011221010049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 1011221010049 in words is "one trillion, eleven billion, two hundred twenty-one million, ten thousand, forty-nine".