202212201202121 has 8 divisors (see below), whose sum is σ = 220595322261600. Its totient is φ = 183829112422240.

The previous prime is 202212201202103. The next prime is 202212201202139. The reversal of 202212201202121 is 121202102212202.

It is an interprime number because it is at equal distance from previous prime (202212201202103) and next prime (202212201202139).

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 202212201202121 - 2⁶ = 202212201202057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202212201202093 and 202212201202102.

It is not an unprimeable number, because it can be changed into a prime (202212201201121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6112010 + ... + 21018588.

It is an arithmetic number, because the mean of its divisors is an integer number (27574415282700).

Almost surely, 2^{202212201202121} is an apocalyptic number.

It is an amenable number.

202212201202121 is a deficient number, since it is larger than the sum of its proper divisors (18383121059479).

202212201202121 is a wasteful number, since it uses less digits than its factorization.

202212201202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16139799.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202212201202121 its reverse (121202102212202), we get a palindrome (323414303414323).

The spelling of 202212201202121 in words is "two hundred two trillion, two hundred twelve billion, two hundred one million, two hundred two thousand, one hundred twenty-one".