11331222220 has 12 divisors (see below), whose sum is σ = 23795566704. Its totient is φ = 4532488880.

The previous prime is 11331222181. The next prime is 11331222277. The reversal of 11331222220 is 2222213311.

11331222220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283280536 + ... + 283280575.

It is an arithmetic number, because the mean of its divisors is an integer number (1982963892).

Almost surely, 2^11331222220 is an apocalyptic number.

11331222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331222220 is an abundant number, since it is smaller than the sum of its proper divisors (12464344484).

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

11331222220 is a wasteful number, since it uses less digits than its factorization.

11331222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566561120 (or 566561118 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11331222220 its reverse (2222213311), we get a palindrome (13553435531).

The spelling of 11331222220 in words is "eleven billion, three hundred thirty-one million, two hundred twenty-two thousand, two hundred twenty".