12211020111020 has 24 divisors (see below), whose sum is σ = 25773310476144. Its totient is φ = 4859614093376.

The previous prime is 12211020110929. The next prime is 12211020111097. The reversal of 12211020111020 is 2011102011221.

It is a junction number, because it is equal to n+sod(n) for n = 12211020110986 and 12211020111004.

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 7 ways as a sum of consecutive naturals, for example, 1549617902 + ... + 1549625781.

It is an arithmetic number, because the mean of its divisors is an integer number (1073887936506).

Almost surely, 2^{12211020111020} is an apocalyptic number.

12211020111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211020111020 is an abundant number, since it is smaller than the sum of its proper divisors (13562290365124).

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

12211020111020 is a wasteful number, since it uses less digits than its factorization.

12211020111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099243889 (or 3099243887 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12211020111020 its reverse (2011102011221), we get a palindrome (14222122122241).

It can be divided in two parts, 122110201 and 11020, that added together give a palindrome (122121221).

The spelling of 12211020111020 in words is "twelve trillion, two hundred eleven billion, twenty million, one hundred eleven thousand, twenty".