221100120002 has 16 divisors (see below), whose sum is σ = 333746082432. Its totient is φ = 109851675120.

The previous prime is 221100119957. The next prime is 221100120011. The reversal of 221100120002 is 200021001122.

It is a happy number.

221100120002 is digitally balanced in base 2 and base 3, because in such bases 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1802408 + ... + 1921164.

It is an arithmetic number, because the mean of its divisors is an integer number (20859130152).

Almost surely, 2^221100120002 is an apocalyptic number.

221100120002 is a deficient number, since it is larger than the sum of its proper divisors (112645962430).

221100120002 is a wasteful number, since it uses less digits than its factorization.

221100120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124633.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 221100120002 its reverse (200021001122), we get a palindrome (421121121124).

The spelling of 221100120002 in words is "two hundred twenty-one billion, one hundred million, one hundred twenty thousand, two".