221300233430 has 64 divisors (see below), whose sum is σ = 434971829952. Its totient is φ = 80724418560.

The previous prime is 221300233411. The next prime is 221300233519. The reversal of 221300233430 is 34332003122.

It is a junction number, because it is equal to n+sod(n) for n = 221300233396 and 221300233405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1442897 + ... + 1588883.

It is an arithmetic number, because the mean of its divisors is an integer number (6796434843).

Almost surely, 2^221300233430 is an apocalyptic number.

221300233430 is a deficient number, since it is larger than the sum of its proper divisors (213671596522).

221300233430 is a wasteful number, since it uses less digits than its factorization.

221300233430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146289.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 221300233430 its reverse (34332003122), we get a palindrome (255632236552).

The spelling of 221300233430 in words is "two hundred twenty-one billion, three hundred million, two hundred thirty-three thousand, four hundred thirty".