204221122401 has 8 divisors (see below), whose sum is σ = 281684306880. Its totient is φ = 131452676432.

The previous prime is 204221122367. The next prime is 204221122403. The reversal of 204221122401 is 104221122402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204221122401 - 2¹¹ = 204221120353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204221122403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173684525 + ... + 1173684698.

It is an arithmetic number, because the mean of its divisors is an integer number (35210538360).

Almost surely, 2^204221122401 is an apocalyptic number.

It is an amenable number.

204221122401 is a deficient number, since it is larger than the sum of its proper divisors (77463184479).

204221122401 is a wasteful number, since it uses less digits than its factorization.

204221122401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347369255.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 204221122401 its reverse (104221122402), we get a palindrome (308442244803).

Subtracting from 204221122401 its reverse (104221122402), we obtain a palindrome (99999999999).

The spelling of 204221122401 in words is "two hundred four billion, two hundred twenty-one million, one hundred twenty-two thousand, four hundred one".