10821147001 has 4 divisors (see below), whose sum is σ = 12367025152. Its totient is φ = 9275268852.

The previous prime is 10821146953. The next prime is 10821147011. The reversal of 10821147001 is 10074112801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10821147001 - 2¹⁹ = 10820622713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10821147011) 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 3 ways as a sum of consecutive naturals, for example, 772939065 + ... + 772939078.

It is an arithmetic number, because the mean of its divisors is an integer number (3091756288).

Almost surely, 2^10821147001 is an apocalyptic number.

It is an amenable number.

10821147001 is a deficient number, since it is larger than the sum of its proper divisors (1545878151).

10821147001 is an equidigital number, since it uses as much as digits as its factorization.

10821147001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545878150.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 10821147001 its reverse (10074112801), we get a palindrome (20895259802).

The spelling of 10821147001 in words is "ten billion, eight hundred twenty-one million, one hundred forty-seven thousand, one".