21214140313224 has 64 divisors (see below), whose sum is σ = 55840636051200. Its totient is φ = 6697528082496.

The previous prime is 21214140313213. The next prime is 21214140313277. The reversal of 21214140313224 is 42231304141212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21214140313191 and 21214140313200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3985554 + ... + 7636289.

It is an arithmetic number, because the mean of its divisors is an integer number (872509938300).

Almost surely, 2^{21214140313224} is an apocalyptic number.

21214140313224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21214140313224 is an abundant number, since it is smaller than the sum of its proper divisors (34626495737976).

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

21214140313224 is a wasteful number, since it uses less digits than its factorization.

21214140313224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11625874 (or 11625870 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 21214140313224 its reverse (42231304141212), we get a palindrome (63445444454436).

The spelling of 21214140313224 in words is "twenty-one trillion, two hundred fourteen billion, one hundred forty million, three hundred thirteen thousand, two hundred twenty-four".