221434453302424 has 16 divisors (see below), whose sum is σ = 415427258583000. Its totient is φ = 110653851013632.

The previous prime is 221434453302323. The next prime is 221434453302451. The reversal of 221434453302424 is 424203354434122.

221434453302424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 7921939849 + ... + 7921967800.

Almost surely, 2^{221434453302424} is an apocalyptic number.

It is an amenable number.

221434453302424 is a deficient number, since it is larger than the sum of its proper divisors (193992805280576).

221434453302424 is a wasteful number, since it uses less digits than its factorization.

221434453302424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15843909402 (or 15843909398 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 43.

The spelling of 221434453302424 in words is "two hundred twenty-one trillion, four hundred thirty-four billion, four hundred fifty-three million, three hundred two thousand, four hundred twenty-four".