1223213002200 has 144 divisors (see below), whose sum is σ = 4694808047280. Its totient is φ = 279591540480.

The previous prime is 1223213002181. The next prime is 1223213002201. The reversal of 1223213002200 is 22003123221.

1223213002200 is a `hidden beast` number, since 1 + 22 + 321 + 300 + 2 + 20 + 0 = 666.

It is a super-2 number, since 2×1223213002200² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223213002201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48527599 + ... + 48552798.

Almost surely, 2^{1223213002200} is an apocalyptic number.

1223213002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223213002200 is an abundant number, since it is smaller than the sum of its proper divisors (3471595045080).

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

1223213002200 is a wasteful number, since it uses less digits than its factorization.

1223213002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97080426 (or 97080414 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1223213002200 its reverse (22003123221), we get a palindrome (1245216125421).

The spelling of 1223213002200 in words is "one trillion, two hundred twenty-three billion, two hundred thirteen million, two thousand, two hundred".