202121213313 has 8 divisors (see below), whose sum is σ = 269497826176. Its totient is φ = 134746038000.

The previous prime is 202121213279. The next prime is 202121213317. The reversal of 202121213313 is 313312121202.

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

It is not a de Polignac number, because 202121213313 - 2³⁴ = 184941344129 is a prime.

It is a super-2 number, since 2×202121213313² (a number of 23 digits) contains 22 as substring.

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 202121213313.

It is not an unprimeable number, because it can be changed into a prime (202121213317) 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, 28488 + ... + 636438.

It is an arithmetic number, because the mean of its divisors is an integer number (33687228272).

Almost surely, 2^202121213313 is an apocalyptic number.

It is an amenable number.

202121213313 is a deficient number, since it is larger than the sum of its proper divisors (67376612863).

202121213313 is a wasteful number, since it uses less digits than its factorization.

202121213313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718775.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 202121213313 its reverse (313312121202), we get a palindrome (515433334515).

The spelling of 202121213313 in words is "two hundred two billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred thirteen".