120012012121121 has 2 divisors, whose sum is σ = 120012012121122. Its totient is φ = 120012012121120.

The previous prime is 120012012121093. The next prime is 120012012121163. The reversal of 120012012121121 is 121121210210021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118978355598400 + 1033656522721 = 10907720^2 + 1016689^2 .

It is a cyclic number.

It is not a de Polignac number, because 120012012121121 - 2⁴⁶ = 49643267943457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120012012121121.

It is not a weakly prime, because it can be changed into another prime (120012012121171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60006006060560 + 60006006060561.

It is an arithmetic number, because the mean of its divisors is an integer number (60006006060561).

Almost surely, 2^{120012012121121} is an apocalyptic number.

It is an amenable number.

120012012121121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120012012121121 is an equidigital number, since it uses as much as digits as its factorization.

120012012121121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 120012012121121 its reverse (121121210210021), we get a palindrome (241133222331142).

The spelling of 120012012121121 in words is "one hundred twenty trillion, twelve billion, twelve million, one hundred twenty-one thousand, one hundred twenty-one".