402224133321 has 24 divisors (see below), whose sum is σ = 602658856800. Its totient is φ = 268082540352.

The previous prime is 402224133169. The next prime is 402224133341. The reversal of 402224133321 is 123331422204.

402224133321 is a `hidden beast` number, since 4 + 0 + 222 + 413 + 3 + 3 + 21 = 666.

It is not a de Polignac number, because 402224133321 - 2¹⁹ = 402223609033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (402224133341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 779506 + ... + 1188308.

It is an arithmetic number, because the mean of its divisors is an integer number (25110785700).

Almost surely, 2^402224133321 is an apocalyptic number.

It is an amenable number.

402224133321 is a deficient number, since it is larger than the sum of its proper divisors (200434723479).

402224133321 is an equidigital number, since it uses as much as digits as its factorization.

402224133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412867 (or 412855 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 402224133321 its reverse (123331422204), we get a palindrome (525555555525).

The spelling of 402224133321 in words is "four hundred two billion, two hundred twenty-four million, one hundred thirty-three thousand, three hundred twenty-one".