1224211200320 has 112 divisors (see below), whose sum is σ = 2962980234048. Its totient is φ = 481671843840.

The previous prime is 1224211200307. The next prime is 1224211200353. The reversal of 1224211200320 is 230021124221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1224211200292 and 1224211200301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14773724 + ... + 14856356.

Almost surely, 2^{1224211200320} is an apocalyptic number.

1224211200320 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 1224211200320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1481490117024).

1224211200320 is an abundant number, since it is smaller than the sum of its proper divisors (1738769033728).

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

1224211200320 is an equidigital number, since it uses as much as digits as its factorization.

1224211200320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83408 (or 83398 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1224211200320 its reverse (230021124221), we get a palindrome (1454232324541).

The spelling of 1224211200320 in words is "one trillion, two hundred twenty-four billion, two hundred eleven million, two hundred thousand, three hundred twenty".