10601221061 has 4 divisors (see below), whose sum is σ = 10601606400. Its totient is φ = 10600835724.

The previous prime is 10601221039. The next prime is 10601221069. The reversal of 10601221061 is 16012210601.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16012210601 = 36931 ⋅433571.

It is a cyclic number.

It is not a de Polignac number, because 10601221061 - 2¹⁰ = 10601220037 is a prime.

It is a super-2 number, since 2×10601221061² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10601221069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147941 + ... + 207578.

It is an arithmetic number, because the mean of its divisors is an integer number (2650401600).

Almost surely, 2^10601221061 is an apocalyptic number.

It is an amenable number.

10601221061 is a deficient number, since it is larger than the sum of its proper divisors (385339).

10601221061 is an equidigital number, since it uses as much as digits as its factorization.

10601221061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385338.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 10601221061 its reverse (16012210601), we get a palindrome (26613431662).

The spelling of 10601221061 in words is "ten billion, six hundred one million, two hundred twenty-one thousand, sixty-one".