224646721442218 has 8 divisors (see below), whose sum is σ = 344139658379712. Its totient is φ = 109933501982316.

The previous prime is 224646721442149. The next prime is 224646721442291. The reversal of 224646721442218 is 812244127646422.

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

It is a super-2 number, since 2×224646721442218² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194929369280 + ... + 1194929369467.

It is an arithmetic number, because the mean of its divisors is an integer number (43017457297464).

Almost surely, 2^{224646721442218} is an apocalyptic number.

224646721442218 is a deficient number, since it is larger than the sum of its proper divisors (119492936937494).

224646721442218 is a wasteful number, since it uses less digits than its factorization.

224646721442218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389858738796.

The product of its digits is 16515072, while the sum is 55.

The spelling of 224646721442218 in words is "two hundred twenty-four trillion, six hundred forty-six billion, seven hundred twenty-one million, four hundred forty-two thousand, two hundred eighteen".