202102212220321 has 8 divisors (see below), whose sum is σ = 231832596070080. Its totient is φ = 172586488182288.

The previous prime is 202102212220283. The next prime is 202102212220369. The reversal of 202102212220321 is 123022212201202.

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 202102212220321 - 2¹³ = 202102212212129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202102212220292 and 202102212220301.

It is not an unprimeable number, because it can be changed into a prime (202102212220721) 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, 53664950911 + ... + 53664954676.

It is an arithmetic number, because the mean of its divisors is an integer number (28979074508760).

Almost surely, 2^{202102212220321} is an apocalyptic number.

It is an amenable number.

202102212220321 is a deficient number, since it is larger than the sum of its proper divisors (29730383849759).

202102212220321 is a wasteful number, since it uses less digits than its factorization.

202102212220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107329905863.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 202102212220321 its reverse (123022212201202), we get a palindrome (325124424421523).

The spelling of 202102212220321 in words is "two hundred two trillion, one hundred two billion, two hundred twelve million, two hundred twenty thousand, three hundred twenty-one".