21214206131411 has 8 divisors (see below), whose sum is σ = 21945784911120. Its totient is φ = 20482630980448.

The previous prime is 21214206131387. The next prime is 21214206131413. The reversal of 21214206131411 is 11413160241212.

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 21214206131411 - 2¹⁰ = 21214206130387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21214206131413) 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 7 ways as a sum of consecutive naturals, for example, 16934045 + ... + 18143601.

It is an arithmetic number, because the mean of its divisors is an integer number (2743223113890).

Almost surely, 2^{21214206131411} is an apocalyptic number.

21214206131411 is a deficient number, since it is larger than the sum of its proper divisors (731578779709).

21214206131411 is a wasteful number, since it uses less digits than its factorization.

21214206131411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814373.

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 21214206131411 its reverse (11413160241212), we get a palindrome (32627366372623).

The spelling of 21214206131411 in words is "twenty-one trillion, two hundred fourteen billion, two hundred six million, one hundred thirty-one thousand, four hundred eleven".