11331222222 has 16 divisors (see below), whose sum is σ = 22668815952. Its totient is φ = 3776012160.

The previous prime is 11331222181. The next prime is 11331222277. The reversal of 11331222222 is 22222213311.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242203 + ... + 285174.

It is an arithmetic number, because the mean of its divisors is an integer number (1416800997).

Almost surely, 2^11331222222 is an apocalyptic number.

11331222222 is an abundant number, since it is smaller than the sum of its proper divisors (11337593730).

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

11331222222 is a wasteful number, since it uses less digits than its factorization.

11331222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530963.

The product of its digits is 576, while the sum is 21.

Adding to 11331222222 its reverse (22222213311), we get a palindrome (33553435533).

The spelling of 11331222222 in words is "eleven billion, three hundred thirty-one million, two hundred twenty-two thousand, two hundred twenty-two".