11220112212 has 24 divisors (see below), whose sum is σ = 26887837536. Its totient is φ = 3638955168.

The previous prime is 11220112207. The next prime is 11220112219. The reversal of 11220112212 is 21221102211.

It is a junction number, because it is equal to n+sod(n) for n = 11220112191 and 11220112200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220112219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12634818 + ... + 12635705.

It is an arithmetic number, because the mean of its divisors is an integer number (1120326564).

Almost surely, 2^11220112212 is an apocalyptic number.

11220112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11220112212 is an abundant number, since it is smaller than the sum of its proper divisors (15667725324).

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

11220112212 is a wasteful number, since it uses less digits than its factorization.

11220112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25270567 (or 25270565 counting only the distinct ones).

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

Adding to 11220112212 its reverse (21221102211), we get a palindrome (32441214423).

The spelling of 11220112212 in words is "eleven billion, two hundred twenty million, one hundred twelve thousand, two hundred twelve".