9012121200121 has 8 divisors (see below), whose sum is σ = 10127333522880. Its totient is φ = 7957190624592.

The previous prime is 9012121200107. The next prime is 9012121200127. The reversal of 9012121200121 is 1210021212109.

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 9012121200121 - 2¹⁵ = 9012121167353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9012121200092 and 9012121200101.

It is not an unprimeable number, because it can be changed into a prime (9012121200127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15070436491 + ... + 15070437088.

It is an arithmetic number, because the mean of its divisors is an integer number (1265916690360).

Almost surely, 2^{9012121200121} is an apocalyptic number.

It is an amenable number.

9012121200121 is a deficient number, since it is larger than the sum of its proper divisors (1115212322759).

9012121200121 is a wasteful number, since it uses less digits than its factorization.

9012121200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30140873615.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 9012121200121 in words is "nine trillion, twelve billion, one hundred twenty-one million, two hundred thousand, one hundred twenty-one".