221411041641 has 12 divisors (see below), whose sum is σ = 320036075268. Its totient is φ = 147505764384.

The previous prime is 221411041571. The next prime is 221411041651. The reversal of 221411041641 is 146140114122.

It is a happy number.

221411041641 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 1 + 10 + 4 + 1 + 641 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 214943504400 + 6467537241 = 463620^2 + 80421^2 .

It is not a de Polignac number, because 221411041641 - 2¹¹ = 221411039593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221411041651) 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, 8452590 + ... + 8478743.

It is an arithmetic number, because the mean of its divisors is an integer number (26669672939).

Almost surely, 2^221411041641 is an apocalyptic number.

It is an amenable number.

221411041641 is a deficient number, since it is larger than the sum of its proper divisors (98625033627).

221411041641 is a wasteful number, since it uses less digits than its factorization.

221411041641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16932792 (or 16932789 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 221411041641 its reverse (146140114122), we get a palindrome (367551155763).

The spelling of 221411041641 in words is "two hundred twenty-one billion, four hundred eleven million, forty-one thousand, six hundred forty-one".