20110221220222 has 16 divisors (see below), whose sum is σ = 34483529702880. Its totient is φ = 8616450048768.

The previous prime is 20110221220163. The next prime is 20110221220241. The reversal of 20110221220222 is 22202212201102.

It is a self number, because there is not a number n which added to its sum of digits gives 20110221220222.

It is a congruent number.

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, 184625983 + ... + 184734874.

It is an arithmetic number, because the mean of its divisors is an integer number (2155220606430).

Almost surely, 2^{20110221220222} is an apocalyptic number.

20110221220222 is a deficient number, since it is larger than the sum of its proper divisors (14373308482658).

20110221220222 is a wasteful number, since it uses less digits than its factorization.

20110221220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369364755.

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

Adding to 20110221220222 its reverse (22202212201102), we get a palindrome (42312433421324).

The spelling of 20110221220222 in words is "twenty trillion, one hundred ten billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".