221300333412 has 12 divisors (see below), whose sum is σ = 516367444656. Its totient is φ = 73766777800.

The previous prime is 221300333389. The next prime is 221300333461. The reversal of 221300333412 is 214333003122.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9220847214 + ... + 9220847237.

It is an arithmetic number, because the mean of its divisors is an integer number (43030620388).

Almost surely, 2^221300333412 is an apocalyptic number.

It is an amenable number.

221300333412 is an abundant number, since it is smaller than the sum of its proper divisors (295067111244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221300333412 is a wasteful number, since it uses less digits than its factorization.

221300333412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18441694458 (or 18441694456 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221300333412 its reverse (214333003122), we get a palindrome (435633336534).

The spelling of 221300333412 in words is "two hundred twenty-one billion, three hundred million, three hundred thirty-three thousand, four hundred twelve".