120201212120121 has 24 divisors (see below), whose sum is σ = 189744396937056. Its totient is φ = 72719824727040.

The previous prime is 120201212120081. The next prime is 120201212120153. The reversal of 120201212120121 is 121021212102021.

120201212120121 is a `hidden beast` number, since 12 + 0 + 201 + 212 + 120 + 121 = 666.

It is not a de Polignac number, because 120201212120121 - 2³⁰ = 120200138378297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120201212120094 and 120201212120103.

It is not an unprimeable number, because it can be changed into a prime (120201212127121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1078233480 + ... + 1078344953.

It is an arithmetic number, because the mean of its divisors is an integer number (7906016539044).

Almost surely, 2^{120201212120121} is an apocalyptic number.

120201212120121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120201212120121 is a deficient number, since it is larger than the sum of its proper divisors (69543184816935).

120201212120121 is a wasteful number, since it uses less digits than its factorization.

120201212120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156579013 (or 2156579010 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120201212120121 its reverse (121021212102021), we get a palindrome (241222424222142).

The spelling of 120201212120121 in words is "one hundred twenty trillion, two hundred one billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty-one".