221130301312 has 16 divisors (see below), whose sum is σ = 440533022400. Its totient is φ = 110565150592.

The previous prime is 221130301307. The next prime is 221130301373. The reversal of 221130301312 is 213103031122.

221130301312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×221130301312² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221130301312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 863790112 + ... + 863790367.

It is an arithmetic number, because the mean of its divisors is an integer number (27533313900).

Almost surely, 2^221130301312 is an apocalyptic number.

It is an amenable number.

221130301312 is a deficient number, since it is larger than the sum of its proper divisors (219402721088).

221130301312 is an equidigital number, since it uses as much as digits as its factorization.

221130301312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727580493 (or 1727580481 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 221130301312 its reverse (213103031122), we get a palindrome (434233332434).

The spelling of 221130301312 in words is "two hundred twenty-one billion, one hundred thirty million, three hundred one thousand, three hundred twelve".