221300330111312 has 80 divisors (see below), whose sum is σ = 454692167838720. Its totient is φ = 103980637384704.

The previous prime is 221300330111297. The next prime is 221300330111339. The reversal of 221300330111312 is 213111033003122.

It is a super-2 number, since 2×221300330111312² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475490783 + ... + 475955969.

It is an arithmetic number, because the mean of its divisors is an integer number (5683652097984).

Almost surely, 2^{221300330111312} is an apocalyptic number.

It is an amenable number.

221300330111312 is an abundant number, since it is smaller than the sum of its proper divisors (233391837727408).

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

221300330111312 is a wasteful number, since it uses less digits than its factorization.

221300330111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467908 (or 467902 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 221300330111312 its reverse (213111033003122), we get a palindrome (434411363114434).

The spelling of 221300330111312 in words is "two hundred twenty-one trillion, three hundred billion, three hundred thirty million, one hundred eleven thousand, three hundred twelve".