1111121222 has 16 divisors (see below), whose sum is σ = 1707366912. Its totient is φ = 542142720.

The previous prime is 1111121201. The next prime is 1111121227. The reversal of 1111121222 is 2221211111.

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

It is a junction number, because it is equal to n+sod(n) for n = 1111121197 and 1111121206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111121227) 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, 20363 + ... + 51350.

It is an arithmetic number, because the mean of its divisors is an integer number (106710432).

Almost surely, 2^1111121222 is an apocalyptic number.

1111121222 is a deficient number, since it is larger than the sum of its proper divisors (596245690).

1111121222 is a wasteful number, since it uses less digits than its factorization.

1111121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71903.

The product of its digits is 16, while the sum is 14.

The square root of 1111121222 is about 33333.4849963216. The cubic root of 1111121222 is about 1035.7473103300.

Adding to 1111121222 its reverse (2221211111), we get a palindrome (3332332333).

The spelling of 1111121222 in words is "one billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twenty-two".