30032440221 has 16 divisors (see below), whose sum is σ = 45777498624. Its totient is φ = 17156226864.

The previous prime is 30032440199. The next prime is 30032440241. The reversal of 30032440221 is 12204423003.

It is not a de Polignac number, because 30032440221 - 2⁷ = 30032440093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30032440241) 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, 143355 + ... + 283928.

It is an arithmetic number, because the mean of its divisors is an integer number (2861093664).

Almost surely, 2^30032440221 is an apocalyptic number.

It is an amenable number.

30032440221 is a deficient number, since it is larger than the sum of its proper divisors (15745058403).

30032440221 is a wasteful number, since it uses less digits than its factorization.

30032440221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430640.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 30032440221 its reverse (12204423003), we get a palindrome (42236863224).

The spelling of 30032440221 in words is "thirty billion, thirty-two million, four hundred forty thousand, two hundred twenty-one".