21414224115215 has 8 divisors (see below), whose sum is σ = 25702168605120. Its totient is φ = 17127979514272.

The previous prime is 21414224115209. The next prime is 21414224115227. The reversal of 21414224115215 is 51251142241412.

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

It is a cyclic number.

It is not a de Polignac number, because 21414224115215 - 2¹⁶ = 21414224049679 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424944524 + ... + 424994913.

It is an arithmetic number, because the mean of its divisors is an integer number (3212771075640).

Almost surely, 2^{21414224115215} is an apocalyptic number.

21414224115215 is a deficient number, since it is larger than the sum of its proper divisors (4287944489905).

21414224115215 is an equidigital number, since it uses as much as digits as its factorization.

21414224115215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849944481.

The product of its digits is 25600, while the sum is 35.

Adding to 21414224115215 its reverse (51251142241412), we get a palindrome (72665366356627).

The spelling of 21414224115215 in words is "twenty-one trillion, four hundred fourteen billion, two hundred twenty-four million, one hundred fifteen thousand, two hundred fifteen".