120210010121 has 2 divisors, whose sum is σ = 120210010122. Its totient is φ = 120210010120.

The previous prime is 120210010111. The next prime is 120210010183. The reversal of 120210010121 is 121010012021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67190342521 + 53019667600 = 259211^2 + 230260^2 .

It is an emirp because it is prime and its reverse (121010012021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120210010121 is a prime.

It is not a weakly prime, because it can be changed into another prime (120210010111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60105005060 + 60105005061.

It is an arithmetic number, because the mean of its divisors is an integer number (60105005061).

Almost surely, 2^120210010121 is an apocalyptic number.

It is an amenable number.

120210010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120210010121 is an equidigital number, since it uses as much as digits as its factorization.

120210010121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120210010121 its reverse (121010012021), we get a palindrome (241220022142).

The spelling of 120210010121 in words is "one hundred twenty billion, two hundred ten million, ten thousand, one hundred twenty-one".