120202212120121 has 4 divisors (see below), whose sum is σ = 120496105059700. Its totient is φ = 119908319180544.

The previous prime is 120202212120083. The next prime is 120202212120127. The reversal of 120202212120121 is 121021212202021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98129232240400 + 22072979879721 = 9906020^2 + 4698189^2 .

It is a cyclic number.

It is not a de Polignac number, because 120202212120121 - 2⁷ = 120202212119993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120202212120127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146946469176 + ... + 146946469993.

It is an arithmetic number, because the mean of its divisors is an integer number (30124026264925).

Almost surely, 2^{120202212120121} is an apocalyptic number.

It is an amenable number.

120202212120121 is a deficient number, since it is larger than the sum of its proper divisors (293892939579).

120202212120121 is an equidigital number, since it uses as much as digits as its factorization.

120202212120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293892939578.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120202212120121 its reverse (121021212202021), we get a palindrome (241223424322142).

The spelling of 120202212120121 in words is "one hundred twenty trillion, two hundred two billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty-one".