30002221222121 has 2 divisors, whose sum is σ = 30002221222122. Its totient is φ = 30002221222120.

The previous prime is 30002221222067. The next prime is 30002221222151. The reversal of 30002221222121 is 12122212220003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15933157956496 + 14069063265625 = 3991636^2 + 3750875^2 .

It is a cyclic number.

It is not a de Polignac number, because 30002221222121 - 2¹⁰ = 30002221221097 is a prime.

It is a super-2 number, since 2×30002221222121² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30002221222093 and 30002221222102.

It is not a weakly prime, because it can be changed into another prime (30002221222151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15001110611060 + 15001110611061.

It is an arithmetic number, because the mean of its divisors is an integer number (15001110611061).

Almost surely, 2^{30002221222121} is an apocalyptic number.

It is an amenable number.

30002221222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30002221222121 is an equidigital number, since it uses as much as digits as its factorization.

30002221222121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 30002221222121 its reverse (12122212220003), we get a palindrome (42124433442124).

The spelling of 30002221222121 in words is "thirty trillion, two billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-one".