120000002112121 has 2 divisors, whose sum is σ = 120000002112122. Its totient is φ = 120000002112120.

The previous prime is 120000002112073. The next prime is 120000002112167. The reversal of 120000002112121 is 121211200000021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96213263674896 + 23786738437225 = 9808836^2 + 4877165^2 .

It is a cyclic number.

It is not a de Polignac number, because 120000002112121 - 2²¹ = 120000000014969 is a prime.

It is a super-2 number, since 2×120000002112121² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120000002112191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60000001056060 + 60000001056061.

It is an arithmetic number, because the mean of its divisors is an integer number (60000001056061).

Almost surely, 2^{120000002112121} is an apocalyptic number.

It is an amenable number.

120000002112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120000002112121 is an equidigital number, since it uses as much as digits as its factorization.

120000002112121 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 120000002112121 its reverse (121211200000021), we get a palindrome (241211202112142).

It can be divided in two parts, 1200000021 and 12121, that multiplied together give a palindrome (14545200254541).

The spelling of 120000002112121 in words is "one hundred twenty trillion, two million, one hundred twelve thousand, one hundred twenty-one".