4243515022221 has 8 divisors (see below), whose sum is σ = 5659151880000. Its totient is φ = 2828444089632.

The previous prime is 4243515022207. The next prime is 4243515022247. The reversal of 4243515022221 is 1222205153424.

4243515022221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4243515022221 - 2⁷ = 4243515022093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243515022261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141463800 + ... + 141493793.

It is an arithmetic number, because the mean of its divisors is an integer number (707393985000).

Almost surely, 2^{4243515022221} is an apocalyptic number.

It is an amenable number.

4243515022221 is a deficient number, since it is larger than the sum of its proper divisors (1415636857779).

4243515022221 is a wasteful number, since it uses less digits than its factorization.

4243515022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282962595.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 4243515022221 in words is "four trillion, two hundred forty-three billion, five hundred fifteen million, twenty-two thousand, two hundred twenty-one".