2211222000222 has 144 divisors (see below), whose sum is σ = 5113801248192. Its totient is φ = 690397102080.

The previous prime is 2211222000209. The next prime is 2211222000223. The reversal of 2211222000222 is 2220002221122.

2211222000222 is a `hidden beast` number, since 221 + 1 + 2 + 220 + 0 + 0 + 222 = 666.

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2211222000195 and 2211222000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211222000223) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1284846322 + ... + 1284848042.

It is an arithmetic number, because the mean of its divisors is an integer number (35512508668).

Almost surely, 2^{2211222000222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211222000222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2556900624096).

2211222000222 is an abundant number, since it is smaller than the sum of its proper divisors (2902579247970).

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

2211222000222 is a wasteful number, since it uses less digits than its factorization.

2211222000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803 (or 2783 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2211222000222 its reverse (2220002221122), we get a palindrome (4431224221344).

The spelling of 2211222000222 in words is "two trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twenty-two", and thus it is an aban number.