1111122120222 has 12 divisors (see below), whose sum is σ = 2407431260520. Its totient is φ = 370374040068.

The previous prime is 1111122120179. The next prime is 1111122120233. The reversal of 1111122120222 is 2220212211111.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 61729006679 = 1111122120222 / (1 + 1 + 1 + 1 + 1 + 2 + 2 + 1 + 2 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1111122120195 and 1111122120204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30864503322 + ... + 30864503357.

It is an arithmetic number, because the mean of its divisors is an integer number (200619271710).

Almost surely, 2^{1111122120222} is an apocalyptic number.

1111122120222 is an abundant number, since it is smaller than the sum of its proper divisors (1296309140298).

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

1111122120222 is a wasteful number, since it uses less digits than its factorization.

1111122120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61729006687 (or 61729006684 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1111122120222 its reverse (2220212211111), we get a palindrome (3331334331333).

The spelling of 1111122120222 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twenty thousand, two hundred twenty-two".