120012211202121 has 24 divisors (see below), whose sum is σ = 203469866443584. Its totient is φ = 66724935956640.

The previous prime is 120012211202119. The next prime is 120012211202137. The reversal of 120012211202121 is 121202112210021.

120012211202121 is a `hidden beast` number, since 1 + 200 + 1 + 221 + 120 + 2 + 121 = 666.

It is not a de Polignac number, because 120012211202121 - 2¹ = 120012211202119 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120012211202094 and 120012211202103.

It is not an unprimeable number, because it can be changed into a prime (120012211202171) 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, 25742642715 + ... + 25742647376.

It is an arithmetic number, because the mean of its divisors is an integer number (8477911101816).

Almost surely, 2^{120012211202121} is an apocalyptic number.

It is an amenable number.

120012211202121 is a deficient number, since it is larger than the sum of its proper divisors (83457655241463).

120012211202121 is a wasteful number, since it uses less digits than its factorization.

120012211202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51485290141 (or 51485290138 counting only the distinct ones).

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

Adding to 120012211202121 its reverse (121202112210021), we get a palindrome (241214323412142).

The spelling of 120012211202121 in words is "one hundred twenty trillion, twelve billion, two hundred eleven million, two hundred two thousand, one hundred twenty-one".