221300320426 has 8 divisors (see below), whose sum is σ = 346383110304. Its totient is φ = 105839283660.

The previous prime is 221300320321. The next prime is 221300320427. The reversal of 221300320426 is 624023003122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 221300320426.

It is not an unprimeable number, because it can be changed into a prime (221300320427) 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, 2405438220 + ... + 2405438311.

It is an arithmetic number, because the mean of its divisors is an integer number (43297888788).

Almost surely, 2^221300320426 is an apocalyptic number.

221300320426 is a deficient number, since it is larger than the sum of its proper divisors (125082789878).

221300320426 is a wasteful number, since it uses less digits than its factorization.

221300320426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810876556.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 221300320426 its reverse (624023003122), we get a palindrome (845323323548).

The spelling of 221300320426 in words is "two hundred twenty-one billion, three hundred million, three hundred twenty thousand, four hundred twenty-six".