1222223031200 has 36 divisors (see below), whose sum is σ = 2983751976870. Its totient is φ = 488889212160.

The previous prime is 1222223031181. The next prime is 1222223031241. The reversal of 1222223031200 is 21303222221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 789190596496 + 433032434704 = 888364^2 + 658052^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 763888595 + ... + 763890194.

Almost surely, 2^{1222223031200} is an apocalyptic number.

1222223031200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222223031200 is an abundant number, since it is smaller than the sum of its proper divisors (1761528945670).

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

1222223031200 is a wasteful number, since it uses less digits than its factorization.

1222223031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527778809 (or 1527778796 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1222223031200 its reverse (21303222221), we get a palindrome (1243526253421).

The spelling of 1222223031200 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-three million, thirty-one thousand, two hundred".