4021423132218 has 8 divisors (see below), whose sum is σ = 8042846264448. Its totient is φ = 1340474377404.

The previous prime is 4021423132171. The next prime is 4021423132219. The reversal of 4021423132218 is 8122313241204.

It is a happy number.

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

4021423132218 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (4021423132219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335118594346 + ... + 335118594357.

It is an arithmetic number, because the mean of its divisors is an integer number (1005355783056).

Almost surely, 2^{4021423132218} is an apocalyptic number.

4021423132218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021423132218 is a wasteful number, since it uses less digits than its factorization.

4021423132218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670237188708.

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 4021423132218 in words is "four trillion, twenty-one billion, four hundred twenty-three million, one hundred thirty-two thousand, two hundred eighteen".