4435421035221 has 24 divisors (see below), whose sum is σ = 7020489805056. Its totient is φ = 2676079535040.

The previous prime is 4435421035211. The next prime is 4435421035249. The reversal of 4435421035221 is 1225301245344.

It is a happy number.

4435421035221 is a `hidden beast` number, since 4 + 4 + 3 + 5 + 421 + 0 + 3 + 5 + 221 = 666.

It is not a de Polignac number, because 4435421035221 - 2⁷ = 4435421035093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4435421035211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100431360 + ... + 100475513.

It is an arithmetic number, because the mean of its divisors is an integer number (292520408544).

Almost surely, 2^{4435421035221} is an apocalyptic number.

It is an amenable number.

4435421035221 is a deficient number, since it is larger than the sum of its proper divisors (2585068769835).

4435421035221 is a wasteful number, since it uses less digits than its factorization.

4435421035221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200907113 (or 200907110 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 4435421035221 in words is "four trillion, four hundred thirty-five billion, four hundred twenty-one million, thirty-five thousand, two hundred twenty-one".