221221034002 has 16 divisors (see below), whose sum is σ = 333695964672. Its totient is φ = 109990166400.

The previous prime is 221221033991. The next prime is 221221034011. The reversal of 221221034002 is 200430122122.

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, 116002 + ... + 675202.

It is an arithmetic number, because the mean of its divisors is an integer number (20855997792).

Almost surely, 2^221221034002 is an apocalyptic number.

221221034002 is a deficient number, since it is larger than the sum of its proper divisors (112474930670).

221221034002 is a wasteful number, since it uses less digits than its factorization.

221221034002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560313.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 221221034002 its reverse (200430122122), we get a palindrome (421651156124).

The spelling of 221221034002 in words is "two hundred twenty-one billion, two hundred twenty-one million, thirty-four thousand, two".