30032222221 has 4 divisors (see below), whose sum is σ = 30046852732. Its totient is φ = 30017591712.

The previous prime is 30032222167. The next prime is 30032222243. The reversal of 30032222221 is 12222223003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20445854121 + 9586368100 = 142989^2 + 97910^2 .

It is a cyclic number.

It is not a de Polignac number, because 30032222221 - 2⁷ = 30032222093 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 (30032222261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7312176 + ... + 7316281.

It is an arithmetic number, because the mean of its divisors is an integer number (7511713183).

Almost surely, 2^30032222221 is an apocalyptic number.

It is an amenable number.

30032222221 is a deficient number, since it is larger than the sum of its proper divisors (14630511).

30032222221 is a wasteful number, since it uses less digits than its factorization.

30032222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14630510.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30032222221 its reverse (12222223003), we get a palindrome (42254445224).

The spelling of 30032222221 in words is "thirty billion, thirty-two million, two hundred twenty-two thousand, two hundred twenty-one".