4221503664121 has 8 divisors (see below), whose sum is σ = 4229019535104. Its totient is φ = 4213991483520.

The previous prime is 4221503664083. The next prime is 4221503664127. The reversal of 4221503664121 is 1214663051224.

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

It is a cyclic number.

It is not a de Polignac number, because 4221503664121 - 2²³ = 4221495275513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221503664127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372356 + ... + 3213466.

It is an arithmetic number, because the mean of its divisors is an integer number (528627441888).

Almost surely, 2^{4221503664121} is an apocalyptic number.

It is an amenable number.

4221503664121 is a deficient number, since it is larger than the sum of its proper divisors (7515870983).

4221503664121 is a wasteful number, since it uses less digits than its factorization.

4221503664121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845191.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 4221503664121 in words is "four trillion, two hundred twenty-one billion, five hundred three million, six hundred sixty-four thousand, one hundred twenty-one".