111110001222 has 128 divisors (see below), whose sum is σ = 252383786496. Its totient is φ = 32313600000.

The previous prime is 111110001221. The next prime is 111110001227. The reversal of 111110001222 is 222100011111.

It is a junction number, because it is equal to n+sod(n) for n = 111110001198 and 111110001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110001221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81637822 + ... + 81639182.

It is an arithmetic number, because the mean of its divisors is an integer number (1971748332).

Almost surely, 2^111110001222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111110001222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126191893248).

111110001222 is an abundant number, since it is smaller than the sum of its proper divisors (141273785274).

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

111110001222 is a wasteful number, since it uses less digits than its factorization.

111110001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111110001222 its reverse (222100011111), we get a palindrome (333210012333).

The spelling of 111110001222 in words is "one hundred eleven billion, one hundred ten million, one thousand, two hundred twenty-two".