201210002122121 has 8 divisors (see below), whose sum is σ = 204629234805600. Its totient is φ = 197791065894240.

The previous prime is 201210002122111. The next prime is 201210002122123. The reversal of 201210002122121 is 121221200012102.

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

It is not a de Polignac number, because 201210002122121 - 2²⁶ = 201209935013257 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 201210002122121.

It is not an unprimeable number, because it can be changed into a prime (201210002122123) 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, 72744716 + ... + 75460013.

It is an arithmetic number, because the mean of its divisors is an integer number (25578654350700).

Almost surely, 2^{201210002122121} is an apocalyptic number.

It is an amenable number.

201210002122121 is a deficient number, since it is larger than the sum of its proper divisors (3419232683479).

201210002122121 is a wasteful number, since it uses less digits than its factorization.

201210002122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148227799.

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

Adding to 201210002122121 its reverse (121221200012102), we get a palindrome (322431202134223).

The spelling of 201210002122121 in words is "two hundred one trillion, two hundred ten billion, two million, one hundred twenty-two thousand, one hundred twenty-one".