12000000222 has 48 divisors (see below), whose sum is σ = 31462191072. Its totient is φ = 3226890240.

The previous prime is 12000000169. The next prime is 12000000293. The reversal of 12000000222 is 22200000021.

It is a Harshad number since it is a multiple of its sum of digits (9).

12000000222 is a modest number, since divided by 222 gives 12 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2798979 + ... + 2803262.

It is an arithmetic number, because the mean of its divisors is an integer number (655462314).

Almost surely, 2^12000000222 is an apocalyptic number.

12000000222 is an abundant number, since it is smaller than the sum of its proper divisors (19462190850).

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

12000000222 is a wasteful number, since it uses less digits than its factorization.

12000000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5602273 (or 5602270 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 12000000222 its reverse (22200000021), we get a palindrome (34200000243).

The spelling of 12000000222 in words is "twelve billion, two hundred twenty-two", and thus it is an aban number.