1222411200 has 168 divisors, whose sum is σ = 4031425008. Its totient is φ = 324280320.

The previous prime is 1222411159. The next prime is 1222411213. The reversal of 1222411200 is 21142221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1222411200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1117854 + ... + 1118946.

Almost surely, 2^1222411200 is an apocalyptic number.

1222411200 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 1222411200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015712504).

1222411200 is an abundant number, since it is smaller than the sum of its proper divisors (2809013808).

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

1222411200 is a wasteful number, since it uses less digits than its factorization.

1222411200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1222411200 is about 34962.9975831593. The cubic root of 1222411200 is about 1069.2332119506.

Adding to 1222411200 its reverse (21142221), we get a palindrome (1243553421).

The spelling of 1222411200 in words is "one billion, two hundred twenty-two million, four hundred eleven thousand, two hundred".