21214026106013 has 32 divisors (see below), whose sum is σ = 25464854048256. Its totient is φ = 17472959336448.

The previous prime is 21214026105989. The next prime is 21214026106033. The reversal of 21214026106013 is 31060162041212.

It is a cyclic number.

It is not a de Polignac number, because 21214026106013 - 2¹⁶ = 21214026040477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214026106033) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 17892545 + ... + 19041302.

It is an arithmetic number, because the mean of its divisors is an integer number (795776689008).

Almost surely, 2^{21214026106013} is an apocalyptic number.

21214026106013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21214026106013 is a deficient number, since it is larger than the sum of its proper divisors (4250827942243).

21214026106013 is a wasteful number, since it uses less digits than its factorization.

21214026106013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36934013.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 21214026106013 its reverse (31060162041212), we get a palindrome (52274188147225).

The spelling of 21214026106013 in words is "twenty-one trillion, two hundred fourteen billion, twenty-six million, one hundred six thousand, thirteen".