12021112001121 has 8 divisors (see below), whose sum is σ = 16725025392960. Its totient is φ = 7665636638352.

The previous prime is 12021112001117. The next prime is 12021112001161. The reversal of 12021112001121 is 12110021112021.

It is a happy number.

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

It is not a de Polignac number, because 12021112001121 - 2² = 12021112001117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12021112001121.

It is not an unprimeable number, because it can be changed into a prime (12021112001161) 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, 87109507186 + ... + 87109507323.

It is an arithmetic number, because the mean of its divisors is an integer number (2090628174120).

Almost surely, 2^{12021112001121} is an apocalyptic number.

It is an amenable number.

12021112001121 is a deficient number, since it is larger than the sum of its proper divisors (4703913391839).

12021112001121 is a wasteful number, since it uses less digits than its factorization.

12021112001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174219014535.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12021112001121 its reverse (12110021112021), we get a palindrome (24131133113142).

The spelling of 12021112001121 in words is "twelve trillion, twenty-one billion, one hundred twelve million, one thousand, one hundred twenty-one".