12122210120121 has 12 divisors (see below), whose sum is σ = 17543338723248. Its totient is φ = 8066021262264.

The previous prime is 12122210120081. The next prime is 12122210120131. The reversal of 12122210120121 is 12102101222121.

12122210120121 is a `hidden beast` number, since 1 + 212 + 2 + 210 + 120 + 121 = 666.

It is not a de Polignac number, because 12122210120121 - 2¹⁷ = 12122209989049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12122210120094 and 12122210120103.

It is not an unprimeable number, because it can be changed into a prime (12122210120131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1287674295 + ... + 1287683708.

It is an arithmetic number, because the mean of its divisors is an integer number (1461944893604).

Almost surely, 2^{12122210120121} is an apocalyptic number.

It is an amenable number.

12122210120121 is a deficient number, since it is larger than the sum of its proper divisors (5421128603127).

12122210120121 is a wasteful number, since it uses less digits than its factorization.

12122210120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575358532 (or 2575358529 counting only the distinct ones).

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

Adding to 12122210120121 its reverse (12102101222121), we get a palindrome (24224311342242).

The spelling of 12122210120121 in words is "twelve trillion, one hundred twenty-two billion, two hundred ten million, one hundred twenty thousand, one hundred twenty-one".