120221303112121 has 2 divisors, whose sum is σ = 120221303112122. Its totient is φ = 120221303112120.

The previous prime is 120221303112037. The next prime is 120221303112137. The reversal of 120221303112121 is 121211303122021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118466049092521 + 1755254019600 = 10884211^2 + 1324860^2 .

It is a cyclic number.

It is not a de Polignac number, because 120221303112121 - 2¹³ = 120221303103929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120221303112092 and 120221303112101.

It is not a weakly prime, because it can be changed into another prime (120221303112161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110651556060 + 60110651556061.

It is an arithmetic number, because the mean of its divisors is an integer number (60110651556061).

Almost surely, 2^{120221303112121} is an apocalyptic number.

It is an amenable number.

120221303112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120221303112121 is an equidigital number, since it uses as much as digits as its factorization.

120221303112121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 120221303112121 its reverse (121211303122021), we get a palindrome (241432606234142).

The spelling of 120221303112121 in words is "one hundred twenty trillion, two hundred twenty-one billion, three hundred three million, one hundred twelve thousand, one hundred twenty-one".