20421214219 has 8 divisors (see below), whose sum is σ = 23341177088. Its totient is φ = 17501913000.

The previous prime is 20421214213. The next prime is 20421214241. The reversal of 20421214219 is 91241212402.

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 20421214219 - 2⁷ = 20421214091 is a prime.

It is a super-2 number, since 2×20421214219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20421214213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97407 + ... + 224344.

It is an arithmetic number, because the mean of its divisors is an integer number (2917647136).

Almost surely, 2^20421214219 is an apocalyptic number.

20421214219 is a deficient number, since it is larger than the sum of its proper divisors (2919962869).

20421214219 is an equidigital number, since it uses as much as digits as its factorization.

20421214219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330825.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 20421214219 in words is "twenty billion, four hundred twenty-one million, two hundred fourteen thousand, two hundred nineteen".