12000001122121 has 16 divisors (see below), whose sum is σ = 12458612275200. Its totient is φ = 11545891329600.

The previous prime is 12000001122103. The next prime is 12000001122139. The reversal of 12000001122121 is 12122110000021.

It is an interprime number because it is at equal distance from previous prime (12000001122103) and next prime (12000001122139).

It is a cyclic number.

It is not a de Polignac number, because 12000001122121 - 2¹³ = 12000001113929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000001122821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22625115 + ... + 23149423.

It is an arithmetic number, because the mean of its divisors is an integer number (778663267200).

Almost surely, 2^{12000001122121} is an apocalyptic number.

It is an amenable number.

12000001122121 is a deficient number, since it is larger than the sum of its proper divisors (458611153079).

12000001122121 is a wasteful number, since it uses less digits than its factorization.

12000001122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528600.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12000001122121 its reverse (12122110000021), we get a palindrome (24122111122142).

The spelling of 12000001122121 in words is "twelve trillion, one million, one hundred twenty-two thousand, one hundred twenty-one".