221441322430 has 32 divisors (see below), whose sum is σ = 412540970400. Its totient is φ = 85480278912.

The previous prime is 221441322367. The next prime is 221441322437. The reversal of 221441322430 is 34223144122.

It is a super-2 number, since 2×221441322430² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221441322437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409401 + ... + 781339.

It is an arithmetic number, because the mean of its divisors is an integer number (12891905325).

Almost surely, 2^221441322430 is an apocalyptic number.

221441322430 is a deficient number, since it is larger than the sum of its proper divisors (191099647970).

221441322430 is a wasteful number, since it uses less digits than its factorization.

221441322430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374028.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 221441322430 its reverse (34223144122), we get a palindrome (255664466552).

The spelling of 221441322430 in words is "two hundred twenty-one billion, four hundred forty-one million, three hundred twenty-two thousand, four hundred thirty".