1100222222022 has 256 divisors, whose sum is σ = 3286938009600. Its totient is φ = 264127392000.

The previous prime is 1100222221993. The next prime is 1100222222137. The reversal of 1100222222022 is 2202222220011.

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 = 1100222221986 and 1100222222004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3069247 + ... + 3408917.

It is an arithmetic number, because the mean of its divisors is an integer number (12839601600).

Almost surely, 2^{1100222222022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100222222022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1643469004800).

1100222222022 is an abundant number, since it is smaller than the sum of its proper divisors (2186715787578).

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

1100222222022 is a wasteful number, since it uses less digits than its factorization.

1100222222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339760 (or 339754 counting only the distinct ones).

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

Adding to 1100222222022 its reverse (2202222220011), we get a palindrome (3302444442033).

The spelling of 1100222222022 in words is "one trillion, one hundred billion, two hundred twenty-two million, two hundred twenty-two thousand, twenty-two".