11112322212 has 72 divisors (see below), whose sum is σ = 29420314560. Its totient is φ = 3529817280.

The previous prime is 11112322211. The next prime is 11112322241. The reversal of 11112322212 is 21222321111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11112322211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197787 + ... + 247677.

It is an arithmetic number, because the mean of its divisors is an integer number (408615480).

Almost surely, 2^11112322212 is an apocalyptic number.

11112322212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11112322212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14710157280).

11112322212 is an abundant number, since it is smaller than the sum of its proper divisors (18307992348).

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

11112322212 is a wasteful number, since it uses less digits than its factorization.

11112322212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50193 (or 50188 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 11112322212 its reverse (21222321111), we get a palindrome (32334643323).

The spelling of 11112322212 in words is "eleven billion, one hundred twelve million, three hundred twenty-two thousand, two hundred twelve".