221241434414401 has 4 divisors (see below), whose sum is σ = 221334042802900. Its totient is φ = 221148826025904.

The previous prime is 221241434414359. The next prime is 221241434414419. The reversal of 221241434414401 is 104414434142122.

221241434414401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 68165647550001 + 153075786864400 = 8256249^2 + 12372380^2 .

It is a cyclic number.

It is not a de Polignac number, because 221241434414401 - 2⁹ = 221241434413889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221241434414701) 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, 46304190666 + ... + 46304195443.

It is an arithmetic number, because the mean of its divisors is an integer number (55333510700725).

Almost surely, 2^{221241434414401} is an apocalyptic number.

It is an amenable number.

221241434414401 is a deficient number, since it is larger than the sum of its proper divisors (92608388499).

221241434414401 is an equidigital number, since it uses as much as digits as its factorization.

221241434414401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92608388498.

The product of its (nonzero) digits is 98304, while the sum is 37.

Adding to 221241434414401 its reverse (104414434142122), we get a palindrome (325655868556523).

The spelling of 221241434414401 in words is "two hundred twenty-one trillion, two hundred forty-one billion, four hundred thirty-four million, four hundred fourteen thousand, four hundred one".