21020212313302 has 32 divisors (see below), whose sum is σ = 33202155801600. Its totient is φ = 9953239510368.

The previous prime is 21020212313257. The next prime is 21020212313311. The reversal of 21020212313302 is 20331321202012.

It is a super-2 number, since 2×21020212313302² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2126040603 + ... + 2126050489.

It is an arithmetic number, because the mean of its divisors is an integer number (1037567368800).

Almost surely, 2^{21020212313302} is an apocalyptic number.

21020212313302 is a deficient number, since it is larger than the sum of its proper divisors (12181943488298).

21020212313302 is a wasteful number, since it uses less digits than its factorization.

21020212313302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25060.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21020212313302 its reverse (20331321202012), we get a palindrome (41351533515314).

The spelling of 21020212313302 in words is "twenty-one trillion, twenty billion, two hundred twelve million, three hundred thirteen thousand, three hundred two".