1222200243000 has 1536 divisors, whose sum is σ = 4913847244800. Its totient is φ = 270978048000.

The previous prime is 1222200242999. The next prime is 1222200243029. The reversal of 1222200243000 is 3420022221.

1222200243000 is a `hidden beast` number, since 1 + 222 + 200 + 243 + 0 + 0 + 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 383 ways as a sum of consecutive naturals, for example, 7498160919 + ... + 7498161081.

It is an arithmetic number, because the mean of its divisors is an integer number (3199119300).

Almost surely, 2^{1222200243000} is an apocalyptic number.

1222200243000 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 1222200243000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2456923622400).

1222200243000 is an abundant number, since it is smaller than the sum of its proper divisors (3691647001800).

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

1222200243000 is a wasteful number, since it uses less digits than its factorization.

1222200243000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 1222200243000 its reverse (3420022221), we get a palindrome (1225620265221).

The spelling of 1222200243000 in words is "one trillion, two hundred twenty-two billion, two hundred million, two hundred forty-three thousand".