120101201202121 has 16 divisors (see below), whose sum is σ = 123887009562624. Its totient is φ = 116360892328464.

The previous prime is 120101201202097. The next prime is 120101201202127. The reversal of 120101201202121 is 121202102101021.

It is a cyclic number.

It is not a de Polignac number, because 120101201202121 - 2¹⁹ = 120101200677833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120101201202095 and 120101201202104.

It is not an unprimeable number, because it can be changed into a prime (120101201202127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24769110 + ... + 29218336.

It is an arithmetic number, because the mean of its divisors is an integer number (7742938097664).

Almost surely, 2^{120101201202121} is an apocalyptic number.

It is an amenable number.

120101201202121 is a deficient number, since it is larger than the sum of its proper divisors (3785808360503).

120101201202121 is a wasteful number, since it uses less digits than its factorization.

120101201202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454340.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120101201202121 its reverse (121202102101021), we get a palindrome (241303303303142).

The spelling of 120101201202121 in words is "one hundred twenty trillion, one hundred one billion, two hundred one million, two hundred two thousand, one hundred twenty-one".