30222220321 has 2 divisors, whose sum is σ = 30222220322. Its totient is φ = 30222220320.

The previous prime is 30222220313. The next prime is 30222220331. The reversal of 30222220321 is 12302222203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18239853025 + 11982367296 = 135055^2 + 109464^2 .

It is a cyclic number.

It is not a de Polignac number, because 30222220321 - 2³ = 30222220313 is a prime.

It is a super-2 number, since 2×30222220321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30222220331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15111110160 + 15111110161.

It is an arithmetic number, because the mean of its divisors is an integer number (15111110161).

Almost surely, 2^30222220321 is an apocalyptic number.

It is an amenable number.

30222220321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30222220321 is an equidigital number, since it uses as much as digits as its factorization.

30222220321 is an odious number, because the sum of its binary digits is odd.

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

Adding to 30222220321 its reverse (12302222203), we get a palindrome (42524442524).

The spelling of 30222220321 in words is "thirty billion, two hundred twenty-two million, two hundred twenty thousand, three hundred twenty-one".