120220201210121 has 16 divisors (see below), whose sum is σ = 126744941030400. Its totient is φ = 113715212033808.

The previous prime is 120220201210097. The next prime is 120220201210127. The reversal of 120220201210121 is 121012102022021.

It is a cyclic number.

It is not a de Polignac number, because 120220201210121 - 2³⁴ = 120203021340937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120220201210121.

It is not an unprimeable number, because it can be changed into a prime (120220201210127) 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 15 ways as a sum of consecutive naturals, for example, 317430956 + ... + 317809458.

It is an arithmetic number, because the mean of its divisors is an integer number (7921558814400).

Almost surely, 2^{120220201210121} is an apocalyptic number.

It is an amenable number.

120220201210121 is a deficient number, since it is larger than the sum of its proper divisors (6524739820279).

120220201210121 is a wasteful number, since it uses less digits than its factorization.

120220201210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404548.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120220201210121 its reverse (121012102022021), we get a palindrome (241232303232142).

The spelling of 120220201210121 in words is "one hundred twenty trillion, two hundred twenty billion, two hundred one million, two hundred ten thousand, one hundred twenty-one".