21213140240014 has 16 divisors (see below), whose sum is σ = 33909626585088. Its totient is φ = 9929555004952.

The previous prime is 21213140239999. The next prime is 21213140240023. The reversal of 21213140240014 is 41004204131212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4905904462 + ... + 4905908785.

It is an arithmetic number, because the mean of its divisors is an integer number (2119351661568).

Almost surely, 2^{21213140240014} is an apocalyptic number.

21213140240014 is a deficient number, since it is larger than the sum of its proper divisors (12696486345074).

21213140240014 is a wasteful number, since it uses less digits than its factorization.

21213140240014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9811813319.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 21213140240014 its reverse (41004204131212), we get a palindrome (62217344371226).

The spelling of 21213140240014 in words is "twenty-one trillion, two hundred thirteen billion, one hundred forty million, two hundred forty thousand, fourteen".