4222004218421 has 16 divisors (see below), whose sum is σ = 4619100453120. Its totient is φ = 3827134758720.

The previous prime is 4222004218361. The next prime is 4222004218427. The reversal of 4222004218421 is 1248124002224.

It is a cyclic number.

It is not a de Polignac number, because 4222004218421 - 2³⁸ = 3947126311477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4222004218427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5774756 + ... + 6464658.

It is an arithmetic number, because the mean of its divisors is an integer number (288693778320).

Almost surely, 2^{4222004218421} is an apocalyptic number.

It is an amenable number.

4222004218421 is a deficient number, since it is larger than the sum of its proper divisors (397096234699).

4222004218421 is a wasteful number, since it uses less digits than its factorization.

4222004218421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691516.

The product of its (nonzero) digits is 16384, while the sum is 32.

The spelling of 4222004218421 in words is "four trillion, two hundred twenty-two billion, four million, two hundred eighteen thousand, four hundred twenty-one".