127821000201 has 8 divisors (see below), whose sum is σ = 175925677824. Its totient is φ = 82465161360.

The previous prime is 127821000163. The next prime is 127821000269. The reversal of 127821000201 is 102000128721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127821000201 - 2¹⁰ = 127820999177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127821100201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687209586 + ... + 687209771.

It is an arithmetic number, because the mean of its divisors is an integer number (21990709728).

Almost surely, 2^127821000201 is an apocalyptic number.

It is an amenable number.

127821000201 is a deficient number, since it is larger than the sum of its proper divisors (48104677623).

127821000201 is a wasteful number, since it uses less digits than its factorization.

127821000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374419391.

The product of its (nonzero) digits is 448, while the sum is 24.

Adding to 127821000201 its reverse (102000128721), we get a palindrome (229821128922).

The spelling of 127821000201 in words is "one hundred twenty-seven billion, eight hundred twenty-one million, two hundred one", and thus it is an aban number.