201121002099965 has 8 divisors (see below), whose sum is σ = 243245558446080. Its totient is φ = 159629897729232.

The previous prime is 201121002099917. The next prime is 201121002100049. The reversal of 201121002099965 is 569990200121102.

It is a happy number.

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 201121002099965 - 2⁸ = 201121002099709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158362993145 + ... + 158362994414.

It is an arithmetic number, because the mean of its divisors is an integer number (30405694805760).

Almost surely, 2^{201121002099965} is an apocalyptic number.

It is an amenable number.

201121002099965 is a deficient number, since it is larger than the sum of its proper divisors (42124556346115).

201121002099965 is a wasteful number, since it uses less digits than its factorization.

201121002099965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316725987691.

The product of its (nonzero) digits is 174960, while the sum is 47.

The spelling of 201121002099965 in words is "two hundred one trillion, one hundred twenty-one billion, two million, ninety-nine thousand, nine hundred sixty-five".