11111220011222 has 16 divisors (see below), whose sum is σ = 16778723590080. Its totient is φ = 5518429253568.

The previous prime is 11111220011209. The next prime is 11111220011233. The reversal of 11111220011222 is 22211002211111.

It is a super-4 number, since 4×11111220011222⁴ (a number of 53 digits) contains 4444 as substring.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 11111220011222.

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 7 ways as a sum of consecutive naturals, for example, 29086343 + ... + 29465874.

It is an arithmetic number, because the mean of its divisors is an integer number (1048670224380).

Almost surely, 2^{11111220011222} is an apocalyptic number.

11111220011222 is a deficient number, since it is larger than the sum of its proper divisors (5667503578858).

11111220011222 is a wasteful number, since it uses less digits than its factorization.

11111220011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58552855.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11111220011222 its reverse (22211002211111), we get a palindrome (33322222222333).

The spelling of 11111220011222 in words is "eleven trillion, one hundred eleven billion, two hundred twenty million, eleven thousand, two hundred twenty-two".