221224004302 has 24 divisors (see below), whose sum is σ = 395428279680. Its totient is φ = 92497839840.

The previous prime is 221224004297. The next prime is 221224004317. The reversal of 221224004302 is 203400422122.

It is a super-2 number, since 2×221224004302² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27525102 + ... + 27533137.

It is an arithmetic number, because the mean of its divisors is an integer number (16476178320).

Almost surely, 2^221224004302 is an apocalyptic number.

221224004302 is a deficient number, since it is larger than the sum of its proper divisors (174204275378).

221224004302 is a wasteful number, since it uses less digits than its factorization.

221224004302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55058296 (or 55058289 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 221224004302 its reverse (203400422122), we get a palindrome (424624426424).

The spelling of 221224004302 in words is "two hundred twenty-one billion, two hundred twenty-four million, four thousand, three hundred two".