12122121000222 has 24 divisors (see below), whose sum is σ = 26278071510600. Its totient is φ = 4038633767760.

The previous prime is 12122121000221. The next prime is 12122121000271. The reversal of 12122121000222 is 22200012122121.

It is a happy number.

12122121000222 is a `hidden beast` number, since 1 + 212 + 21 + 210 + 0 + 0 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12122121000195 and 12122121000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122121000221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172733304 + ... + 172803467.

It is an arithmetic number, because the mean of its divisors is an integer number (1094919646275).

Almost surely, 2^{12122121000222} is an apocalyptic number.

12122121000222 is an abundant number, since it is smaller than the sum of its proper divisors (14155950510378).

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

12122121000222 is a wasteful number, since it uses less digits than its factorization.

12122121000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345538728 (or 345538725 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12122121000222 its reverse (22200012122121), we get a palindrome (34322133122343).

The spelling of 12122121000222 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-two", and thus it is an aban number.