21214353235 has 8 divisors (see below), whose sum is σ = 25459885296. Its totient is φ = 16969708320.

The previous prime is 21214353229. The next prime is 21214353241. The reversal of 21214353235 is 53235341212.

It is an interprime number because it is at equal distance from previous prime (21214353229) and next prime (21214353241).

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

It is not a de Polignac number, because 21214353235 - 2⁵ = 21214353203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21214353197 and 21214353206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167989 + ... + 265798.

It is an arithmetic number, because the mean of its divisors is an integer number (3182485662).

Almost surely, 2^21214353235 is an apocalyptic number.

21214353235 is a deficient number, since it is larger than the sum of its proper divisors (4245532061).

21214353235 is an equidigital number, since it uses as much as digits as its factorization.

21214353235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443573.

The product of its digits is 21600, while the sum is 31.

Adding to 21214353235 its reverse (53235341212), we get a palindrome (74449694447).

The spelling of 21214353235 in words is "twenty-one billion, two hundred fourteen million, three hundred fifty-three thousand, two hundred thirty-five".