201121202200121 has 8 divisors (see below), whose sum is σ = 230045470422144. Its totient is φ = 172245100955040.

The previous prime is 201121202200117. The next prime is 201121202200169. The reversal of 201121202200121 is 121002202121102.

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 201121202200121 - 2² = 201121202200117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201121202200121.

It is not an unprimeable number, because it can be changed into a prime (201111202200121) 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, 12041735285 + ... + 12041751986.

It is an arithmetic number, because the mean of its divisors is an integer number (28755683802768).

Almost surely, 2^{201121202200121} is an apocalyptic number.

It is an amenable number.

201121202200121 is a deficient number, since it is larger than the sum of its proper divisors (28924268222023).

201121202200121 is a wasteful number, since it uses less digits than its factorization.

201121202200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24083488471.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201121202200121 its reverse (121002202121102), we get a palindrome (322123404321223).

The spelling of 201121202200121 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred two million, two hundred thousand, one hundred twenty-one".