10564440121 has 16 divisors (see below), whose sum is σ = 11045985280. Its totient is φ = 10092392640.

The previous prime is 10564440083. The next prime is 10564440149. The reversal of 10564440121 is 12104446501.

It is a cyclic number.

It is not a de Polignac number, because 10564440121 - 2¹³ = 10564431929 is a prime.

It is a super-2 number, since 2×10564440121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10564440121.

It is not an unprimeable number, because it can be changed into a prime (10564440151) 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, 930340 + ... + 941626.

It is an arithmetic number, because the mean of its divisors is an integer number (690374080).

Almost surely, 2^10564440121 is an apocalyptic number.

It is an amenable number.

10564440121 is a deficient number, since it is larger than the sum of its proper divisors (481545159).

10564440121 is a wasteful number, since it uses less digits than its factorization.

10564440121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11704.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 10564440121 its reverse (12104446501), we get a palindrome (22668886622).

The spelling of 10564440121 in words is "ten billion, five hundred sixty-four million, four hundred forty thousand, one hundred twenty-one".