41204130221021 has 4 divisors (see below), whose sum is σ = 41204235871932. Its totient is φ = 41204024570112.

The previous prime is 41204130220991. The next prime is 41204130221029. The reversal of 41204130221021 is 12012203140214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19126715028100 + 22077415192921 = 4373410^2 + 4698661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41204130221021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41204130221029) 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, 52238276 + ... + 53021181.

It is an arithmetic number, because the mean of its divisors is an integer number (10301058967983).

Almost surely, 2^{41204130221021} is an apocalyptic number.

It is an amenable number.

41204130221021 is a deficient number, since it is larger than the sum of its proper divisors (105650911).

41204130221021 is a wasteful number, since it uses less digits than its factorization.

41204130221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105650910.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 41204130221021 its reverse (12012203140214), we get a palindrome (53216333361235).

The spelling of 41204130221021 in words is "forty-one trillion, two hundred four billion, one hundred thirty million, two hundred twenty-one thousand, twenty-one".