1222012222200 has 288 divisors, whose sum is σ = 5116581624960. Its totient is φ = 253924588800.

The previous prime is 1222012222183. The next prime is 1222012222229. The reversal of 1222012222200 is 22222102221.

1222012222200 is a `hidden beast` number, since 1 + 2 + 220 + 1 + 222 + 220 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4269814 + ... + 4547013.

It is an arithmetic number, because the mean of its divisors is an integer number (17765908420).

Almost surely, 2^{1222012222200} is an apocalyptic number.

1222012222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222012222200 is an abundant number, since it is smaller than the sum of its proper divisors (3894569402760).

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

1222012222200 is a wasteful number, since it uses less digits than its factorization.

1222012222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8816867 (or 8816855 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1222012222200 its reverse (22222102221), we get a palindrome (1244234324421).

The spelling of 1222012222200 in words is "one trillion, two hundred twenty-two billion, twelve million, two hundred twenty-two thousand, two hundred".