9001202110121 has 16 divisors (see below), whose sum is σ = 10250355214848. Its totient is φ = 7844659574400.

The previous prime is 9001202110091. The next prime is 9001202110141. The reversal of 9001202110121 is 1210112021009.

It is a cyclic number.

It is not a de Polignac number, because 9001202110121 - 2²² = 9001197915817 is a prime.

It is a super-3 number, since 3×9001202110121³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9001202110093 and 9001202110102.

It is not an unprimeable number, because it can be changed into a prime (9001202110141) 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, 272367491 + ... + 272400536.

It is an arithmetic number, because the mean of its divisors is an integer number (640647200928).

Almost surely, 2^{9001202110121} is an apocalyptic number.

It is an amenable number.

9001202110121 is a deficient number, since it is larger than the sum of its proper divisors (1249153104727).

9001202110121 is a wasteful number, since it uses less digits than its factorization.

9001202110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544768112.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 9001202110121 in words is "nine trillion, one billion, two hundred two million, one hundred ten thousand, one hundred twenty-one".