221012220102202 has 16 divisors (see below), whose sum is σ = 331559482427712. Its totient is φ = 110492393502400.

The previous prime is 221012220102169. The next prime is 221012220102263. The reversal of 221012220102202 is 202201022210122.

It is a self number, because there is not a number n which added to its sum of digits gives 221012220102202.

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, 545718393 + ... + 546123235.

It is an arithmetic number, because the mean of its divisors is an integer number (20722467651732).

Almost surely, 2^{221012220102202} is an apocalyptic number.

221012220102202 is a deficient number, since it is larger than the sum of its proper divisors (110547262325510).

221012220102202 is a wasteful number, since it uses less digits than its factorization.

221012220102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438053.

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

Adding to 221012220102202 its reverse (202201022210122), we get a palindrome (423213242312324).

The spelling of 221012220102202 in words is "two hundred twenty-one trillion, twelve billion, two hundred twenty million, one hundred two thousand, two hundred two".