20112211110222 has 128 divisors (see below), whose sum is σ = 58144845496320. Its totient is φ = 4996822612320.

The previous prime is 20112211110197. The next prime is 20112211110253. The reversal of 20112211110222 is 22201111221102.

20112211110222 is a `hidden beast` number, since 201 + 1 + 221 + 11 + 10 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20112211110195 and 20112211110204.

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 63 ways as a sum of consecutive naturals, for example, 105056358 + ... + 105247625.

It is an arithmetic number, because the mean of its divisors is an integer number (454256605440).

Almost surely, 2^{20112211110222} is an apocalyptic number.

20112211110222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20112211110222 is an abundant number, since it is smaller than the sum of its proper divisors (38032634386098).

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

20112211110222 is a wasteful number, since it uses less digits than its factorization.

20112211110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210304035 (or 210304029 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20112211110222 its reverse (22201111221102), we get a palindrome (42313322331324).

The spelling of 20112211110222 in words is "twenty trillion, one hundred twelve billion, two hundred eleven million, one hundred ten thousand, two hundred twenty-two".