22111120212 has 12 divisors (see below), whose sum is σ = 51592613856. Its totient is φ = 7370373400.

The previous prime is 22111120153. The next prime is 22111120247. The reversal of 22111120212 is 21202111122.

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 = 22111120191 and 22111120200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921296664 + ... + 921296687.

It is an arithmetic number, because the mean of its divisors is an integer number (4299384488).

Almost surely, 2^22111120212 is an apocalyptic number.

It is an amenable number.

22111120212 is an abundant number, since it is smaller than the sum of its proper divisors (29481493644).

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

22111120212 is a wasteful number, since it uses less digits than its factorization.

22111120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842593358 (or 1842593356 counting only the distinct ones).

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

Adding to 22111120212 its reverse (21202111122), we get a palindrome (43313231334).

The spelling of 22111120212 in words is "twenty-two billion, one hundred eleven million, one hundred twenty thousand, two hundred twelve".