221424313401 has 12 divisors (see below), whose sum is σ = 320476078000. Its totient is φ = 147320381880.

The previous prime is 221424313399. The next prime is 221424313423. The reversal of 221424313401 is 104313424122.

221424313401 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 243 + 13 + 401 = 666.

It is not a de Polignac number, because 221424313401 - 2¹ = 221424313399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221424313471) 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, 24647515 + ... + 24656496.

Almost surely, 2^221424313401 is an apocalyptic number.

It is an amenable number.

221424313401 is a deficient number, since it is larger than the sum of its proper divisors (99051764599).

221424313401 is a wasteful number, since it uses less digits than its factorization.

221424313401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49304516 (or 49304513 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 221424313401 its reverse (104313424122), we get a palindrome (325737737523).

The spelling of 221424313401 in words is "two hundred twenty-one billion, four hundred twenty-four million, three hundred thirteen thousand, four hundred one".