121220022121049 has 2 divisors, whose sum is σ = 121220022121050. Its totient is φ = 121220022121048.

The previous prime is 121220022120943. The next prime is 121220022121157. The reversal of 121220022121049 is 940121220022121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108211340491024 + 13008681630025 = 10402468^2 + 3606755^2 .

It is a cyclic number.

It is not a de Polignac number, because 121220022121049 - 2⁸ = 121220022120793 is a prime.

It is not a weakly prime, because it can be changed into another prime (121220022421049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610011060524 + 60610011060525.

It is an arithmetic number, because the mean of its divisors is an integer number (60610011060525).

Almost surely, 2^{121220022121049} is an apocalyptic number.

It is an amenable number.

121220022121049 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220022121049 is an equidigital number, since it uses as much as digits as its factorization.

121220022121049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 121220022121049 in words is "one hundred twenty-one trillion, two hundred twenty billion, twenty-two million, one hundred twenty-one thousand, forty-nine".