224401004021 has 8 divisors (see below), whose sum is σ = 237935758080. Its totient is φ = 211038667488.

The previous prime is 224401004017. The next prime is 224401004033. The reversal of 224401004021 is 120400104422.

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 224401004021 - 2² = 224401004017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224401003984 and 224401004002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224401004041) 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, 43101701 + ... + 43106906.

It is an arithmetic number, because the mean of its divisors is an integer number (29741969760).

Almost surely, 2^224401004021 is an apocalyptic number.

It is an amenable number.

224401004021 is a deficient number, since it is larger than the sum of its proper divisors (13534754059).

224401004021 is a wasteful number, since it uses less digits than its factorization.

224401004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86208763.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 224401004021 its reverse (120400104422), we get a palindrome (344801108443).

The spelling of 224401004021 in words is "two hundred twenty-four billion, four hundred one million, four thousand, twenty-one".