21152067201 has 12 divisors (see below), whose sum is σ = 31203050112. Its totient is φ = 13801348536.

The previous prime is 21152067191. The next prime is 21152067203. The reversal of 21152067201 is 10276025112.

It is not a de Polignac number, because 21152067201 - 2⁷ = 21152067073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21152067203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25002021 + ... + 25002866.

It is an arithmetic number, because the mean of its divisors is an integer number (2600254176).

Almost surely, 2^21152067201 is an apocalyptic number.

It is an amenable number.

21152067201 is a deficient number, since it is larger than the sum of its proper divisors (10050982911).

21152067201 is a wasteful number, since it uses less digits than its factorization.

21152067201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50004940 (or 50004937 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The spelling of 21152067201 in words is "twenty-one billion, one hundred fifty-two million, sixty-seven thousand, two hundred one".