221404004403201 has 6 divisors (see below), whose sum is σ = 319805784137970. Its totient is φ = 147602669602128.

The previous prime is 221404004403199. The next prime is 221404004403223. The reversal of 221404004403201 is 102304400404122.

221404004403201 is a `hidden beast` number, since 2 + 2 + 14 + 0 + 4 + 0 + 0 + 440 + 3 + 201 = 666.

It can be written as a sum of positive squares in only one way, i.e., 175131345038400 + 46272659364801 = 13233720^2 + 6802401^2 .

It is not a de Polignac number, because 221404004403201 - 2¹ = 221404004403199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221404004403401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12300222466836 + ... + 12300222466853.

It is an arithmetic number, because the mean of its divisors is an integer number (53300964022995).

Almost surely, 2^{221404004403201} is an apocalyptic number.

It is an amenable number.

221404004403201 is a deficient number, since it is larger than the sum of its proper divisors (98401779734769).

221404004403201 is a wasteful number, since it uses less digits than its factorization.

221404004403201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24600444933695 (or 24600444933692 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 221404004403201 its reverse (102304400404122), we get a palindrome (323708404807323).

The spelling of 221404004403201 in words is "two hundred twenty-one trillion, four hundred four billion, four million, four hundred three thousand, two hundred one".