221130333012 has 48 divisors (see below), whose sum is σ = 535202655680. Its totient is φ = 71009664768.

The previous prime is 221130332971. The next prime is 221130333029. The reversal of 221130333012 is 210333031122.

221130333012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221130333012.

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, 2897587 + ... + 2972922.

Almost surely, 2^221130333012 is an apocalyptic number.

It is an amenable number.

221130333012 is an abundant number, since it is smaller than the sum of its proper divisors (314072322668).

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

221130333012 is a wasteful number, since it uses less digits than its factorization.

221130333012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5870632 (or 5870630 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 221130333012 its reverse (210333031122), we get a palindrome (431463364134).

The spelling of 221130333012 in words is "two hundred twenty-one billion, one hundred thirty million, three hundred thirty-three thousand, twelve".