11110222011220 has 12 divisors (see below), whose sum is σ = 23331466223604. Its totient is φ = 4444088804480.

The previous prime is 11110222011211. The next prime is 11110222011221. The reversal of 11110222011220 is 2211022201111.

It can be written as a sum of positive squares in 2 ways, for example, as 6438459657744 + 4671762353476 = 2537412^2 + 2161426^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11110222011194 and 11110222011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110222011221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277755550261 + ... + 277755550300.

It is an arithmetic number, because the mean of its divisors is an integer number (1944288851967).

Almost surely, 2^{11110222011220} is an apocalyptic number.

11110222011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11110222011220 is an abundant number, since it is smaller than the sum of its proper divisors (12221244212384).

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

11110222011220 is a wasteful number, since it uses less digits than its factorization.

11110222011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555511100570 (or 555511100568 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11110222011220 its reverse (2211022201111), we get a palindrome (13321244212331).

The spelling of 11110222011220 in words is "eleven trillion, one hundred ten billion, two hundred twenty-two million, eleven thousand, two hundred twenty".