21034968781227 has 8 divisors (see below), whose sum is σ = 28056286308864. Its totient is φ = 14018481887208.

The previous prime is 21034968781201. The next prime is 21034968781247. The reversal of 21034968781227 is 72218786943012.

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

It is not a de Polignac number, because 21034968781227 - 2⁶ = 21034968781163 is a prime.

It is a super-3 number, since 3×21034968781227³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21034968781247) 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, 1207648243 + ... + 1207665660.

It is an arithmetic number, because the mean of its divisors is an integer number (3507035788608).

Almost surely, 2^{21034968781227} is an apocalyptic number.

21034968781227 is a deficient number, since it is larger than the sum of its proper divisors (7021317527637).

21034968781227 is a wasteful number, since it uses less digits than its factorization.

21034968781227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415316809.

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 21034968781227 in words is "twenty-one trillion, thirty-four billion, nine hundred sixty-eight million, seven hundred eighty-one thousand, two hundred twenty-seven".