221202022012002 has 80 divisors (see below), whose sum is σ = 495892485952512. Its totient is φ = 73698892787520.

The previous prime is 221202022011959. The next prime is 221202022012033. The reversal of 221202022012002 is 200210220202122.

221202022012002 is a `hidden beast` number, since 221 + 2 + 0 + 20 + 220 + 1 + 200 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 39 ways as a sum of consecutive naturals, for example, 3299863878 + ... + 3299930910.

Almost surely, 2^{221202022012002} is an apocalyptic number.

221202022012002 is an abundant number, since it is smaller than the sum of its proper divisors (274690463940510).

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

221202022012002 is a wasteful number, since it uses less digits than its factorization.

221202022012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76445 (or 76436 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 221202022012002 its reverse (200210220202122), we get a palindrome (421412242214124).

The spelling of 221202022012002 in words is "two hundred twenty-one trillion, two hundred two billion, twenty-two million, twelve thousand, two".