221201344002 has 16 divisors (see below), whose sum is σ = 442445676192. Its totient is φ = 73726616640.

The previous prime is 221201343949. The next prime is 221201344079. The reversal of 221201344002 is 200443102122.

221201344002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221201344002² (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 221201344002.

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, 1724088 + ... + 1847939.

It is an arithmetic number, because the mean of its divisors is an integer number (27652854762).

Almost surely, 2^221201344002 is an apocalyptic number.

221201344002 is an abundant number, since it is smaller than the sum of its proper divisors (221244332190).

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

221201344002 is a wasteful number, since it uses less digits than its factorization.

221201344002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582353.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 221201344002 its reverse (200443102122), we get a palindrome (421644446124).

The spelling of 221201344002 in words is "two hundred twenty-one billion, two hundred one million, three hundred forty-four thousand, two".