12201210012121 has 16 divisors (see below), whose sum is σ = 13230877752064. Its totient is φ = 11184638946624.

The previous prime is 12201210012073. The next prime is 12201210012137. The reversal of 12201210012121 is 12121001210221.

It is not a de Polignac number, because 12201210012121 - 2¹³ = 12201210003929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201210012095 and 12201210012104.

It is not an unprimeable number, because it can be changed into a prime (12201210012151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1962700 + ... + 5315506.

It is an arithmetic number, because the mean of its divisors is an integer number (826929859504).

Almost surely, 2^{12201210012121} is an apocalyptic number.

It is an amenable number.

12201210012121 is a deficient number, since it is larger than the sum of its proper divisors (1029667739943).

12201210012121 is a wasteful number, since it uses less digits than its factorization.

12201210012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354760.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12201210012121 its reverse (12121001210221), we get a palindrome (24322211222342).

The spelling of 12201210012121 in words is "twelve trillion, two hundred one billion, two hundred ten million, twelve thousand, one hundred twenty-one".