120201202220121 has 64 divisors (see below), whose sum is σ = 195484799139840. Its totient is φ = 72391757296320.

The previous prime is 120201202220119. The next prime is 120201202220137. The reversal of 120201202220121 is 121022202102021.

It is a happy number.

120201202220121 is a `hidden beast` number, since 1 + 20 + 201 + 202 + 220 + 1 + 21 = 666.

It is not a de Polignac number, because 120201202220121 - 2¹ = 120201202220119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120201202220094 and 120201202220103.

It is not an unprimeable number, because it can be changed into a prime (120201202220191) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 339329320 + ... + 339683366.

It is an arithmetic number, because the mean of its divisors is an integer number (3054449986560).

Almost surely, 2^{120201202220121} is an apocalyptic number.

120201202220121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120201202220121 is a deficient number, since it is larger than the sum of its proper divisors (75283596919719).

120201202220121 is a wasteful number, since it uses less digits than its factorization.

120201202220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361243 (or 361237 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120201202220121 its reverse (121022202102021), we get a palindrome (241223404322142).

The spelling of 120201202220121 in words is "one hundred twenty trillion, two hundred one billion, two hundred two million, two hundred twenty thousand, one hundred twenty-one".