22110212212 has 48 divisors (see below), whose sum is σ = 43599628800. Its totient is φ = 9719740800.

The previous prime is 22110212123. The next prime is 22110212213. The reversal of 22110212212 is 21221201122.

It is a happy number.

It is a super-2 number, since 2×22110212212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110212213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2654278 + ... + 2662594.

It is an arithmetic number, because the mean of its divisors is an integer number (908325600).

Almost surely, 2^22110212212 is an apocalyptic number.

22110212212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22110212212 is a deficient number, since it is larger than the sum of its proper divisors (21489416588).

22110212212 is a wasteful number, since it uses less digits than its factorization.

22110212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10312 (or 10310 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22110212212 its reverse (21221201122), we get a palindrome (43331413334).

The spelling of 22110212212 in words is "twenty-two billion, one hundred ten million, two hundred twelve thousand, two hundred twelve".