221201011002 has 128 divisors (see below), whose sum is σ = 465720192000. Its totient is φ = 69991764480.

The previous prime is 221201010997. The next prime is 221201011013. The reversal of 221201011002 is 200110102122.

221201011002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 63 ways as a sum of consecutive naturals, for example, 344013693 + ... + 344014335.

It is an arithmetic number, because the mean of its divisors is an integer number (3638439000).

Almost surely, 2^221201011002 is an apocalyptic number.

221201011002 is an abundant number, since it is smaller than the sum of its proper divisors (244519180998).

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

221201011002 is a wasteful number, since it uses less digits than its factorization.

221201011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036.

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

Adding to 221201011002 its reverse (200110102122), we get a palindrome (421311113124).

The spelling of 221201011002 in words is "two hundred twenty-one billion, two hundred one million, eleven thousand, two".