221410404201 has 16 divisors (see below), whose sum is σ = 345616242048. Its totient is φ = 123434371200.

The previous prime is 221410404113. The next prime is 221410404253. The reversal of 221410404201 is 102404014122.

It is not a de Polignac number, because 221410404201 - 2¹⁵ = 221410371433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (221410404601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128576610 + ... + 128578331.

It is an arithmetic number, because the mean of its divisors is an integer number (21601015128).

Almost surely, 2^221410404201 is an apocalyptic number.

221410404201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

221410404201 is a deficient number, since it is larger than the sum of its proper divisors (124205837847).

221410404201 is a wasteful number, since it uses less digits than its factorization.

221410404201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257154992.

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

Adding to 221410404201 its reverse (102404014122), we get a palindrome (323814418323).

The spelling of 221410404201 in words is "two hundred twenty-one billion, four hundred ten million, four hundred four thousand, two hundred one".