12210012000121 has 8 divisors (see below), whose sum is σ = 13190723960904. Its totient is φ = 11235225792000.

The previous prime is 12210012000101. The next prime is 12210012000157. The reversal of 12210012000121 is 12100021001221.

It can be written as a sum of positive squares in 4 ways, for example, as 374960275600 + 11835051724521 = 612340^2 + 3440211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12210012000121 - 2¹¹ = 12210011998073 is a prime.

It is a super-3 number, since 3×12210012000121³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210012000101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481433880 + ... + 1481442121.

It is an arithmetic number, because the mean of its divisors is an integer number (1648840495113).

Almost surely, 2^{12210012000121} is an apocalyptic number.

It is an amenable number.

12210012000121 is a deficient number, since it is larger than the sum of its proper divisors (980711960783).

12210012000121 is a wasteful number, since it uses less digits than its factorization.

12210012000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962876331.

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

Adding to 12210012000121 its reverse (12100021001221), we get a palindrome (24310033001342).

The spelling of 12210012000121 in words is "twelve trillion, two hundred ten billion, twelve million, one hundred twenty-one", and thus it is an aban number.