1301212229 has 2 divisors, whose sum is σ = 1301212230. Its totient is φ = 1301212228.

The previous prime is 1301212219. The next prime is 1301212247. The reversal of 1301212229 is 9222121031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1228502500 + 72709729 = 35050^2 + 8527^2 .

It is an emirp because it is prime and its reverse (9222121031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1301212229 - 2⁸ = 1301211973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301212219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650606114 + 650606115.

It is an arithmetic number, because the mean of its divisors is an integer number (650606115).

Almost surely, 2^1301212229 is an apocalyptic number.

It is an amenable number.

1301212229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301212229 is an equidigital number, since it uses as much as digits as its factorization.

1301212229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1301212229 is about 36072.3194291690. The cubic root of 1301212229 is about 1091.7320130829.

The spelling of 1301212229 in words is "one billion, three hundred one million, two hundred twelve thousand, two hundred twenty-nine".