1210201229 has 2 divisors, whose sum is σ = 1210201230. Its totient is φ = 1210201228.

The previous prime is 1210201199. The next prime is 1210201243. The reversal of 1210201229 is 9221020121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 700660900 + 509540329 = 26470^2 + 22573^2 .

It is an emirp because it is prime and its reverse (9221020121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1210201229 - 2⁸ = 1210200973 is a prime.

It is a super-2 number, since 2×1210201229² = 2929174029346220882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1210201229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210201249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605100614 + 605100615.

It is an arithmetic number, because the mean of its divisors is an integer number (605100615).

Almost surely, 2^1210201229 is an apocalyptic number.

It is an amenable number.

1210201229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210201229 is an equidigital number, since it uses as much as digits as its factorization.

1210201229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1210201229 is about 34787.9466051102. The cubic root of 1210201229 is about 1065.6613051376.

The spelling of 1210201229 in words is "one billion, two hundred ten million, two hundred one thousand, two hundred twenty-nine".