1212220000200 has 384 divisors, whose sum is σ = 4283468697600. Its totient is φ = 280718592000.

The previous prime is 1212220000193. The next prime is 1212220000207. The reversal of 1212220000200 is 20000222121.

It is an interprime number because it is at equal distance from previous prime (1212220000193) and next prime (1212220000207).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1212220000207) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 122801265 + ... + 122811135.

It is an arithmetic number, because the mean of its divisors is an integer number (11154866400).

Almost surely, 2^{1212220000200} is an apocalyptic number.

1212220000200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212220000200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2141734348800).

1212220000200 is an abundant number, since it is smaller than the sum of its proper divisors (3071248697400).

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

1212220000200 is a wasteful number, since it uses less digits than its factorization.

1212220000200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10733 (or 10724 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1212220000200 its reverse (20000222121), we get a palindrome (1232220222321).

The spelling of 1212220000200 in words is "one trillion, two hundred twelve billion, two hundred twenty million, two hundred", and thus it is an aban number.