201219072601 has 2 divisors, whose sum is σ = 201219072602. Its totient is φ = 201219072600.

The previous prime is 201219072599. The next prime is 201219072623. The reversal of 201219072601 is 106270912102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113315717376 + 87903355225 = 336624^2 + 296485^2 .

It is a cyclic number.

It is not a de Polignac number, because 201219072601 - 2¹ = 201219072599 is a prime.

Together with 201219072599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (201219072401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100609536300 + 100609536301.

It is an arithmetic number, because the mean of its divisors is an integer number (100609536301).

Almost surely, 2^201219072601 is an apocalyptic number.

It is an amenable number.

201219072601 is a deficient number, since it is larger than the sum of its proper divisors (1).

201219072601 is an equidigital number, since it uses as much as digits as its factorization.

201219072601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

Adding to 201219072601 its reverse (106270912102), we get a palindrome (307489984703).

The spelling of 201219072601 in words is "two hundred one billion, two hundred nineteen million, seventy-two thousand, six hundred one".