11220222112212 has 192 divisors, whose sum is σ = 27684962161920. Its totient is φ = 3532767473664.

The previous prime is 11220222112181. The next prime is 11220222112217. The reversal of 11220222112212 is 21221122202211.

It is a super-2 number, since 2×11220222112212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220222112217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1021965739 + ... + 1021976717.

It is an arithmetic number, because the mean of its divisors is an integer number (144192511260).

Almost surely, 2^{11220222112212} is an apocalyptic number.

11220222112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11220222112212 is an abundant number, since it is smaller than the sum of its proper divisors (16464740049708).

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

11220222112212 is a wasteful number, since it uses less digits than its factorization.

11220222112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11530 (or 11528 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11220222112212 its reverse (21221122202211), we get a palindrome (32441344314423).

The spelling of 11220222112212 in words is "eleven trillion, two hundred twenty billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twelve".