221201201222002 has 8 divisors (see below), whose sum is σ = 335222438965596. Its totient is φ = 109460388233472.

The previous prime is 221201201221963. The next prime is 221201201222069. The reversal of 221201201222002 is 200222102102122.

It can be written as a sum of positive squares in 2 ways, for example, as 211750255792881 + 9450945429121 = 14551641^2 + 3074239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570106188523 + ... + 570106188910.

Almost surely, 2^{221201201222002} is an apocalyptic number.

221201201222002 is a deficient number, since it is larger than the sum of its proper divisors (114021237743594).

221201201222002 is a wasteful number, since it uses less digits than its factorization.

221201201222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140212377532.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221201201222002 its reverse (200222102102122), we get a palindrome (421423303324124).

The spelling of 221201201222002 in words is "two hundred twenty-one trillion, two hundred one billion, two hundred one million, two hundred twenty-two thousand, two".