11000222120 has 32 divisors (see below), whose sum is σ = 24763966920. Its totient is φ = 4397694720.

The previous prime is 11000222071. The next prime is 11000222131. The reversal of 11000222120 is 2122200011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7902854404 + 3097367716 = 88898^2 + 55654^2 .

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, 554 + ... + 148326.

Almost surely, 2^11000222120 is an apocalyptic number.

11000222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000222120 is an abundant number, since it is smaller than the sum of its proper divisors (13763744800).

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

11000222120 is a wasteful number, since it uses less digits than its factorization.

11000222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149645 (or 149641 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11000222120 its reverse (2122200011), we get a palindrome (13122422131).

The spelling of 11000222120 in words is "eleven billion, two hundred twenty-two thousand, one hundred twenty".