18584020222 has 8 divisors (see below), whose sum is σ = 28047049416. Its totient is φ = 9235003752.

The previous prime is 18584020219. The next prime is 18584020249. The reversal of 18584020222 is 22202048581.

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

It is a super-2 number, since 2×18584020222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 28502773 + ... + 28503424.

It is an arithmetic number, because the mean of its divisors is an integer number (3505881177).

Almost surely, 2^18584020222 is an apocalyptic number.

18584020222 is a deficient number, since it is larger than the sum of its proper divisors (9463029194).

18584020222 is a wasteful number, since it uses less digits than its factorization.

18584020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57006362.

The product of its (nonzero) digits is 20480, while the sum is 34.

The spelling of 18584020222 in words is "eighteen billion, five hundred eighty-four million, twenty thousand, two hundred twenty-two".