1122221213200 has 60 divisors (see below), whose sum is σ = 2711032421188. Its totient is φ = 446408409600.

The previous prime is 1122221213173. The next prime is 1122221213213. The reversal of 1122221213200 is 23121222211.

It can be written as a sum of positive squares in 6 ways, for example, as 9862873344 + 1112358339856 = 99312^2 + 1054684^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7677747 + ... + 7822546.

Almost surely, 2^{1122221213200} is an apocalyptic number.

1122221213200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122221213200 is an abundant number, since it is smaller than the sum of its proper divisors (1588811207988).

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

1122221213200 is a wasteful number, since it uses less digits than its factorization.

1122221213200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15500492 (or 15500481 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1122221213200 its reverse (23121222211), we get a palindrome (1145342435411).

The spelling of 1122221213200 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred".