21213310330302 has 8 divisors (see below), whose sum is σ = 42426620660616. Its totient is φ = 7071103443432.

The previous prime is 21213310330259. The next prime is 21213310330337. The reversal of 21213310330302 is 20303301331212.

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

21213310330302 is an admirable number.

It is a super-2 number, since 2×21213310330302² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1767775860853 + ... + 1767775860864.

It is an arithmetic number, because the mean of its divisors is an integer number (5303327582577).

Almost surely, 2^{21213310330302} is an apocalyptic number.

21213310330302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21213310330302 is a wasteful number, since it uses less digits than its factorization.

21213310330302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535551721722.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21213310330302 its reverse (20303301331212), we get a palindrome (41516611661514).

The spelling of 21213310330302 in words is "twenty-one trillion, two hundred thirteen billion, three hundred ten million, three hundred thirty thousand, three hundred two".