22012122102222 has 96 divisors (see below), whose sum is σ = 51456315778560. Its totient is φ = 6259189722240.

The previous prime is 22012122102193. The next prime is 22012122102247. The reversal of 22012122102222 is 22220122121022.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 47 ways as a sum of consecutive naturals, for example, 120836773 + ... + 121018799.

It is an arithmetic number, because the mean of its divisors is an integer number (536003289360).

Almost surely, 2^{22012122102222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22012122102222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25728157889280).

22012122102222 is an abundant number, since it is smaller than the sum of its proper divisors (29444193676338).

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

22012122102222 is a wasteful number, since it uses less digits than its factorization.

22012122102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184006 (or 183999 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22012122102222 its reverse (22220122121022), we get a palindrome (44232244223244).

The spelling of 22012122102222 in words is "twenty-two trillion, twelve billion, one hundred twenty-two million, one hundred two thousand, two hundred twenty-two".