11120221212 has 12 divisors (see below), whose sum is σ = 25947182856. Its totient is φ = 3706740400.

The previous prime is 11120221159. The next prime is 11120221223. The reversal of 11120221212 is 21212202111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11120221191 and 11120221200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463342539 + ... + 463342562.

It is an arithmetic number, because the mean of its divisors is an integer number (2162265238).

Almost surely, 2^11120221212 is an apocalyptic number.

11120221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11120221212 is an abundant number, since it is smaller than the sum of its proper divisors (14826961644).

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

11120221212 is a wasteful number, since it uses less digits than its factorization.

11120221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926685108 (or 926685106 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11120221212 its reverse (21212202111), we get a palindrome (32332423323).

The spelling of 11120221212 in words is "eleven billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twelve".