213331020202 has 4 divisors (see below), whose sum is σ = 319996530306. Its totient is φ = 106665510100.

The previous prime is 213331020173. The next prime is 213331020257. The reversal of 213331020202 is 202020133312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 177181223041 + 36149797161 = 420929^2 + 190131^2 .

It is a super-2 number, since 2×213331020202² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213331020202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53332755049 + ... + 53332755052.

Almost surely, 2^213331020202 is an apocalyptic number.

213331020202 is a deficient number, since it is larger than the sum of its proper divisors (106665510104).

213331020202 is a wasteful number, since it uses less digits than its factorization.

213331020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106665510103.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 213331020202 its reverse (202020133312), we get a palindrome (415351153514).

It can be divided in two parts, 2133310 and 20202, that added together give a palindrome (2153512).

The spelling of 213331020202 in words is "two hundred thirteen billion, three hundred thirty-one million, twenty thousand, two hundred two".