221300332212 has 24 divisors (see below), whose sum is σ = 522903740800. Its totient is φ = 72833020416.

The previous prime is 221300332171. The next prime is 221300332223. The reversal of 221300332212 is 212233003122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116718637 + ... + 116720532.

Almost surely, 2^221300332212 is an apocalyptic number.

It is an amenable number.

221300332212 is an abundant number, since it is smaller than the sum of its proper divisors (301603408588).

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

221300332212 is a wasteful number, since it uses less digits than its factorization.

221300332212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233439255 (or 233439253 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221300332212 its reverse (212233003122), we get a palindrome (433533335334).

The spelling of 221300332212 in words is "two hundred twenty-one billion, three hundred million, three hundred thirty-two thousand, two hundred twelve".