224221421320331 has 4 divisors (see below), whose sum is σ = 230281459734432. Its totient is φ = 218161382906232.

The previous prime is 224221421320327. The next prime is 224221421320373. The reversal of 224221421320331 is 133023124122422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 224221421320331 - 2² = 224221421320327 is a prime.

It is a super-2 number, since 2×224221421320331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224221421320321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3030019206995 + ... + 3030019207068.

It is an arithmetic number, because the mean of its divisors is an integer number (57570364933608).

Almost surely, 2^{224221421320331} is an apocalyptic number.

224221421320331 is a deficient number, since it is larger than the sum of its proper divisors (6060038414101).

224221421320331 is an equidigital number, since it uses as much as digits as its factorization.

224221421320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060038414100.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 224221421320331 its reverse (133023124122422), we get a palindrome (357244545442753).

The spelling of 224221421320331 in words is "two hundred twenty-four trillion, two hundred twenty-one billion, four hundred twenty-one million, three hundred twenty thousand, three hundred thirty-one".