1224120000 has 210 divisors, whose sum is σ = 4087694644. Its totient is φ = 323200000.

The previous prime is 1224119993. The next prime is 1224120013. The reversal of 1224120000 is 214221.

It is a hoax number, since the sum of its digits (12) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 12119950 + ... + 12120050.

Almost surely, 2^1224120000 is an apocalyptic number.

1224120000 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 1224120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2043847322).

1224120000 is an abundant number, since it is smaller than the sum of its proper divisors (2863574644).

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

1224120000 is an frugal number, since it uses more digits than its factorization.

1224120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1224120000 is about 34987.4263128913. The cubic root of 1224120000 is about 1069.7312044993.

Multiplying 1224120000 by its sum of digits (12), we get a square (14689440000 = 121200²).

1224120000 divided by its sum of digits (12) gives a square (102010000 = 10100²).

Adding to 1224120000 its reverse (214221), we get a palindrome (1224334221).

The spelling of 1224120000 in words is "one billion, two hundred twenty-four million, one hundred twenty thousand".