41721044121 has 12 divisors (see below), whose sum is σ = 60375130660. Its totient is φ = 27762613920.

The previous prime is 41721044107. The next prime is 41721044159. The reversal of 41721044121 is 12144012714.

It is a happy number.

41721044121 is a `hidden beast` number, since 4 + 1 + 7 + 210 + 441 + 2 + 1 = 666.

41721044121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31982314896 + 9738729225 = 178836^2 + 98685^2 .

It is not a de Polignac number, because 41721044121 - 2⁵ = 41721044089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (41721044191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4279486 + ... + 4289223.

Almost surely, 2^41721044121 is an apocalyptic number.

It is an amenable number.

41721044121 is a deficient number, since it is larger than the sum of its proper divisors (18654086539).

41721044121 is a wasteful number, since it uses less digits than its factorization.

41721044121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8569256 (or 8569253 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

Adding to 41721044121 its reverse (12144012714), we get a palindrome (53865056835).

The spelling of 41721044121 in words is "forty-one billion, seven hundred twenty-one million, forty-four thousand, one hundred twenty-one".