4221503664123 has 32 divisors (see below), whose sum is σ = 5771677665600. Its totient is φ = 2742970613760.

The previous prime is 4221503664083. The next prime is 4221503664127. The reversal of 4221503664123 is 3214663051224.

It is not a de Polignac number, because 4221503664123 - 2¹² = 4221503660027 is a prime.

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

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 845481915 + ... + 845486907.

It is an arithmetic number, because the mean of its divisors is an integer number (180364927050).

Almost surely, 2^{4221503664123} is an apocalyptic number.

4221503664123 is a deficient number, since it is larger than the sum of its proper divisors (1550174001477).

4221503664123 is a wasteful number, since it uses less digits than its factorization.

4221503664123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10479.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 4221503664123 in words is "four trillion, two hundred twenty-one billion, five hundred three million, six hundred sixty-four thousand, one hundred twenty-three".