1112221111222 has 16 divisors (see below), whose sum is σ = 1854621804672. Its totient is φ = 496773696960.

The previous prime is 1112221111217. The next prime is 1112221111223. The reversal of 1112221111222 is 2221111222111.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

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 1112221111222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112221111223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689962663 + ... + 689964274.

It is an arithmetic number, because the mean of its divisors is an integer number (115913862792).

Almost surely, 2^{1112221111222} is an apocalyptic number.

1112221111222 is a deficient number, since it is larger than the sum of its proper divisors (742400693450).

1112221111222 is a wasteful number, since it uses less digits than its factorization.

1112221111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379926983.

The product of its digits is 64, while the sum is 19.

Adding to 1112221111222 its reverse (2221111222111), we get a palindrome (3333332333333).

It can be divided in two parts, 111 and 2221111222, that multiplied together give a palindrome (246543345642).

The spelling of 1112221111222 in words is "one trillion, one hundred twelve billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twenty-two".