221002110012 has 24 divisors (see below), whose sum is σ = 518652355536. Its totient is φ = 73241546368.

The previous prime is 221002109953. The next prime is 221002110053. The reversal of 221002110012 is 210011200122.

221002110012 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 221002110012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53225793 + ... + 53229944.

It is an arithmetic number, because the mean of its divisors is an integer number (21610514814).

Almost surely, 2^221002110012 is an apocalyptic number.

It is an amenable number.

221002110012 is an abundant number, since it is smaller than the sum of its proper divisors (297650245524).

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

221002110012 is a wasteful number, since it uses less digits than its factorization.

221002110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106455917 (or 106455915 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221002110012 its reverse (210011200122), we get a palindrome (431013310134).

The spelling of 221002110012 in words is "two hundred twenty-one billion, two million, one hundred ten thousand, twelve".