121220022222289 has 2 divisors, whose sum is σ = 121220022222290. Its totient is φ = 121220022222288.

The previous prime is 121220022222163. The next prime is 121220022222293. The reversal of 121220022222289 is 982222220022121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118308954968064 + 2911067254225 = 10876992^2 + 1706185^2 .

It is a cyclic number.

It is not a de Polignac number, because 121220022222289 - 2²¹ = 121220020125137 is a prime.

It is not a weakly prime, because it can be changed into another prime (121220022222589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610011111144 + 60610011111145.

It is an arithmetic number, because the mean of its divisors is an integer number (60610011111145).

Almost surely, 2^{121220022222289} is an apocalyptic number.

It is an amenable number.

121220022222289 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220022222289 is an equidigital number, since it uses as much as digits as its factorization.

121220022222289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 121220022222289 in words is "one hundred twenty-one trillion, two hundred twenty billion, twenty-two million, two hundred twenty-two thousand, two hundred eighty-nine".