30020322221 has 16 divisors (see below), whose sum is σ = 33415334400. Its totient is φ = 26851564800.

The previous prime is 30020322209. The next prime is 30020322271. The reversal of 30020322221 is 12222302003.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30020322221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30020322221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020322271) 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, 597416 + ... + 645713.

It is an arithmetic number, because the mean of its divisors is an integer number (2088458400).

Almost surely, 2^30020322221 is an apocalyptic number.

30020322221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30020322221 is a deficient number, since it is larger than the sum of its proper divisors (3395012179).

30020322221 is a wasteful number, since it uses less digits than its factorization.

30020322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243220.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30020322221 its reverse (12222302003), we get a palindrome (42242624224).

The spelling of 30020322221 in words is "thirty billion, twenty million, three hundred twenty-two thousand, two hundred twenty-one".