1230221407 has 2 divisors, whose sum is σ = 1230221408. Its totient is φ = 1230221406.

The previous prime is 1230221389. The next prime is 1230221431. The reversal of 1230221407 is 7041220321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230221407 - 2¹¹ = 1230219359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230221437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615110703 + 615110704.

It is an arithmetic number, because the mean of its divisors is an integer number (615110704).

Almost surely, 2^1230221407 is an apocalyptic number.

1230221407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230221407 is an equidigital number, since it uses as much as digits as its factorization.

1230221407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1230221407 is about 35074.5122132867. The cubic root of 1230221407 is about 1071.5055543425.

Adding to 1230221407 its reverse (7041220321), we get a palindrome (8271441728).

The spelling of 1230221407 in words is "one billion, two hundred thirty million, two hundred twenty-one thousand, four hundred seven".