12011101222220 has 24 divisors (see below), whose sum is σ = 25223395655808. Its totient is φ = 4804424662400.

The previous prime is 12011101222217. The next prime is 12011101222261. The reversal of 12011101222220 is 2222210111021.

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, 6686885 + ... + 8290755.

It is an arithmetic number, because the mean of its divisors is an integer number (1050974818992).

Almost surely, 2^{12011101222220} is an apocalyptic number.

12011101222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011101222220 is an abundant number, since it is smaller than the sum of its proper divisors (13212294433588).

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

12011101222220 is a wasteful number, since it uses less digits than its factorization.

12011101222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978321 (or 1978319 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12011101222220 its reverse (2222210111021), we get a palindrome (14233311333241).

The spelling of 12011101222220 in words is "twelve trillion, eleven billion, one hundred one million, two hundred twenty-two thousand, two hundred twenty".