10921724801 has 16 divisors (see below), whose sum is σ = 11959955280. Its totient is φ = 9913052160.

The previous prime is 10921724773. The next prime is 10921724867. The reversal of 10921724801 is 10842712901.

It can be written as a sum of positive squares in 8 ways, for example, as 1395769600 + 9525955201 = 37360^2 + 97601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10921724801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10921724101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183341 + ... + 235493.

It is an arithmetic number, because the mean of its divisors is an integer number (747497205).

Almost surely, 2^10921724801 is an apocalyptic number.

It is an amenable number.

10921724801 is a deficient number, since it is larger than the sum of its proper divisors (1038230479).

10921724801 is a wasteful number, since it uses less digits than its factorization.

10921724801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52436.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 10921724801 in words is "ten billion, nine hundred twenty-one million, seven hundred twenty-four thousand, eight hundred one".