12011002220 has 48 divisors (see below), whose sum is σ = 28847058240. Its totient is φ = 4115107584.

The previous prime is 12011002153. The next prime is 12011002259. The reversal of 12011002220 is 2220011021.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170042 + ... + 230078.

It is an arithmetic number, because the mean of its divisors is an integer number (600980380).

Almost surely, 2^12011002220 is an apocalyptic number.

12011002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011002220 is an abundant number, since it is smaller than the sum of its proper divisors (16836056020).

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

12011002220 is a wasteful number, since it uses less digits than its factorization.

12011002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61482 (or 61480 counting only the distinct ones).

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

Adding to 12011002220 its reverse (2220011021), we get a palindrome (14231013241).

The spelling of 12011002220 in words is "twelve billion, eleven million, two thousand, two hundred twenty".