30032033221 has 4 divisors (see below), whose sum is σ = 30174365344. Its totient is φ = 29889701100.

The previous prime is 30032033219. The next prime is 30032033233. The reversal of 30032033221 is 12233023003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30032033221 - 2¹ = 30032033219 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 (30032033321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71165745 + ... + 71166166.

It is an arithmetic number, because the mean of its divisors is an integer number (7543591336).

Almost surely, 2^30032033221 is an apocalyptic number.

It is an amenable number.

30032033221 is a deficient number, since it is larger than the sum of its proper divisors (142332123).

30032033221 is a wasteful number, since it uses less digits than its factorization.

30032033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142332122.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 30032033221 its reverse (12233023003), we get a palindrome (42265056224).

The spelling of 30032033221 in words is "thirty billion, thirty-two million, thirty-three thousand, two hundred twenty-one".