201202212212121 has 8 divisors (see below), whose sum is σ = 268270437158944. Its totient is φ = 134134397703360.

The previous prime is 201202212212069. The next prime is 201202212212123. The reversal of 201202212212121 is 121212212202102.

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

It is not a de Polignac number, because 201202212212121 - 2³⁸ = 200927334305177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201202212212123) 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, 101463856 + ... + 103427841.

It is an arithmetic number, because the mean of its divisors is an integer number (33533804644868).

Almost surely, 2^{201202212212121} is an apocalyptic number.

It is an amenable number.

201202212212121 is a deficient number, since it is larger than the sum of its proper divisors (67068224946823).

201202212212121 is a wasteful number, since it uses less digits than its factorization.

201202212212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205219031.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 201202212212121 its reverse (121212212202102), we get a palindrome (322414424414223).

The spelling of 201202212212121 in words is "two hundred one trillion, two hundred two billion, two hundred twelve million, two hundred twelve thousand, one hundred twenty-one".