120221211201121 has 2 divisors, whose sum is σ = 120221211201122. Its totient is φ = 120221211201120.

The previous prime is 120221211201071. The next prime is 120221211201127. The reversal of 120221211201121 is 121102112122021.

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., 101935495808721 + 18285715392400 = 10096311^2 + 4276180^2 .

It is a cyclic number.

It is not a de Polignac number, because 120221211201121 - 2³⁹ = 119671455387233 is a prime.

It is not a weakly prime, because it can be changed into another prime (120221211201127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110605600560 + 60110605600561.

It is an arithmetic number, because the mean of its divisors is an integer number (60110605600561).

Almost surely, 2^{120221211201121} is an apocalyptic number.

It is an amenable number.

120221211201121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120221211201121 is an equidigital number, since it uses as much as digits as its factorization.

120221211201121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 120221211201121 its reverse (121102112122021), we get a palindrome (241323323323142).

The spelling of 120221211201121 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred eleven million, two hundred one thousand, one hundred twenty-one".