120120201121 has 2 divisors, whose sum is σ = 120120201122. Its totient is φ = 120120201120.

The previous prime is 120120201119. The next prime is 120120201233. The reversal of 120120201121 is 121102021021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72285699600 + 47834501521 = 268860^2 + 218711^2 .

It is an emirp because it is prime and its reverse (121102021021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120120201121 - 2¹ = 120120201119 is a prime.

Together with 120120201119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120120201101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060100560 + 60060100561.

It is an arithmetic number, because the mean of its divisors is an integer number (60060100561).

Almost surely, 2^120120201121 is an apocalyptic number.

It is an amenable number.

120120201121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120120201121 is an equidigital number, since it uses as much as digits as its factorization.

120120201121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120120201121 its reverse (121102021021), we get a palindrome (241222222142).

The spelling of 120120201121 in words is "one hundred twenty billion, one hundred twenty million, two hundred one thousand, one hundred twenty-one".