304212220129 has 2 divisors, whose sum is σ = 304212220130. Its totient is φ = 304212220128.

The previous prime is 304212220061. The next prime is 304212220217. The reversal of 304212220129 is 921022212403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258470560000 + 45741660129 = 508400^2 + 213873^2 .

It is a cyclic number.

It is not a de Polignac number, because 304212220129 - 2¹¹ = 304212218081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 304212220097 and 304212220106.

It is not a weakly prime, because it can be changed into another prime (304212220229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152106110064 + 152106110065.

It is an arithmetic number, because the mean of its divisors is an integer number (152106110065).

Almost surely, 2^304212220129 is an apocalyptic number.

It is an amenable number.

304212220129 is a deficient number, since it is larger than the sum of its proper divisors (1).

304212220129 is an equidigital number, since it uses as much as digits as its factorization.

304212220129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 304212220129 in words is "three hundred four billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty-nine".