120210102121 has 2 divisors, whose sum is σ = 120210102122. Its totient is φ = 120210102120.

The previous prime is 120210102113. The next prime is 120210102167. The reversal of 120210102121 is 121201012021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97840712025 + 22369390096 = 312795^2 + 149564^2 .

It is a cyclic number.

It is not a de Polignac number, because 120210102121 - 2³ = 120210102113 is a prime.

It is not a weakly prime, because it can be changed into another prime (120210103121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60105051060 + 60105051061.

It is an arithmetic number, because the mean of its divisors is an integer number (60105051061).

Almost surely, 2^120210102121 is an apocalyptic number.

It is an amenable number.

120210102121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120210102121 is an equidigital number, since it uses as much as digits as its factorization.

120210102121 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 120210102121 its reverse (121201012021), we get a palindrome (241411114142).

The spelling of 120210102121 in words is "one hundred twenty billion, two hundred ten million, one hundred two thousand, one hundred twenty-one".