221121120120202 has 16 divisors (see below), whose sum is σ = 332841423160512. Its totient is φ = 110174393633920.

The previous prime is 221121120120181. The next prime is 221121120120239. The reversal of 221121120120202 is 202021021121122.

It is a self number, because there is not a number n which added to its sum of digits gives 221121120120202.

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 7 ways as a sum of consecutive naturals, for example, 102574108 + ... + 104707639.

It is an arithmetic number, because the mean of its divisors is an integer number (20802588947532).

Almost surely, 2^{221121120120202} is an apocalyptic number.

221121120120202 is a deficient number, since it is larger than the sum of its proper divisors (111720303040310).

221121120120202 is a wasteful number, since it uses less digits than its factorization.

221121120120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207283613.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221121120120202 its reverse (202021021121122), we get a palindrome (423142141241324).

The spelling of 221121120120202 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, one hundred twenty million, one hundred twenty thousand, two hundred two".