222111120012 has 96 divisors (see below), whose sum is σ = 558509656320. Its totient is φ = 68474004480.

The previous prime is 222111119977. The next prime is 222111120019. The reversal of 222111120012 is 210021111222.

It is a junction number, because it is equal to n+sod(n) for n = 222111119973 and 222111120000.

It is not an unprimeable number, because it can be changed into a prime (222111120019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24240712 + ... + 24249872.

It is an arithmetic number, because the mean of its divisors is an integer number (5817808920).

Almost surely, 2^222111120012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222111120012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279254828160).

222111120012 is an abundant number, since it is smaller than the sum of its proper divisors (336398536308).

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

222111120012 is a wasteful number, since it uses less digits than its factorization.

222111120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11703 (or 11701 counting only the distinct ones).

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

Adding to 222111120012 its reverse (210021111222), we get a palindrome (432132231234).

The spelling of 222111120012 in words is "two hundred twenty-two billion, one hundred eleven million, one hundred twenty thousand, twelve".