21214206135063 has 24 divisors (see below), whose sum is σ = 31979765380992. Its totient is φ = 13525898390928.

The previous prime is 21214206135049. The next prime is 21214206135103. The reversal of 21214206135063 is 36053160241212.

21214206135063 is a `hidden beast` number, since 2 + 1 + 2 + 14 + 20 + 613 + 5 + 0 + 6 + 3 = 666.

It is not a de Polignac number, because 21214206135063 - 2²² = 21214201940759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214206185063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6176881 + ... + 8976762.

It is an arithmetic number, because the mean of its divisors is an integer number (1332490224208).

Almost surely, 2^{21214206135063} is an apocalyptic number.

21214206135063 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21214206135063 is a deficient number, since it is larger than the sum of its proper divisors (10765559245929).

21214206135063 is a wasteful number, since it uses less digits than its factorization.

21214206135063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15160435 (or 15160432 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 21214206135063 its reverse (36053160241212), we get a palindrome (57267366376275).

The spelling of 21214206135063 in words is "twenty-one trillion, two hundred fourteen billion, two hundred six million, one hundred thirty-five thousand, sixty-three".