1000201229 has 2 divisors, whose sum is σ = 1000201230. Its totient is φ = 1000201228.

The previous prime is 1000201193. The next prime is 1000201231. The reversal of 1000201229 is 9221020001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 692900329 + 307300900 = 26323^2 + 17530^2 .

It is an emirp because it is prime and its reverse (9221020001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000201229 - 2⁸ = 1000200973 is a prime.

It is a super-3 number, since 3×1000201229³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 1000201231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000201129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500100614 + 500100615.

It is an arithmetic number, because the mean of its divisors is an integer number (500100615).

Almost surely, 2^1000201229 is an apocalyptic number.

It is an amenable number.

1000201229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000201229 is an equidigital number, since it uses as much as digits as its factorization.

1000201229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1000201229 is about 31625.9581514932. The cubic root of 1000201229 is about 1000.0670718346.

The spelling of 1000201229 in words is "one billion, two hundred one thousand, two hundred twenty-nine".