21242213241310 has 16 divisors (see below), whose sum is σ = 38283958734336. Its totient is φ = 8486224207648.

The previous prime is 21242213241241. The next prime is 21242213241397. The reversal of 21242213241310 is 1314231224212.

It is a super-2 number, since 2×21242213241310² (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 7 ways as a sum of consecutive naturals, for example, 1332627742 + ... + 1332643681.

It is an arithmetic number, because the mean of its divisors is an integer number (2392747420896).

Almost surely, 2^{21242213241310} is an apocalyptic number.

21242213241310 is a deficient number, since it is larger than the sum of its proper divisors (17041745493026).

21242213241310 is a wasteful number, since it uses less digits than its factorization.

21242213241310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665272227.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21242213241310 its reverse (1314231224212), we get a palindrome (22556444465522).

The spelling of 21242213241310 in words is "twenty-one trillion, two hundred forty-two billion, two hundred thirteen million, two hundred forty-one thousand, three hundred ten".