1224211040 has 96 divisors (see below), whose sum is σ = 3278711520. Its totient is φ = 428212224.

The previous prime is 1224211033. The next prime is 1224211061. The reversal of 1224211040 is 401124221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24032 + ... + 55008.

It is an arithmetic number, because the mean of its divisors is an integer number (34153245).

Almost surely, 2^1224211040 is an apocalyptic number.

1224211040 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 1224211040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1639355760).

1224211040 is an abundant number, since it is smaller than the sum of its proper divisors (2054500480).

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

1224211040 is a wasteful number, since it uses less digits than its factorization.

1224211040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31024 (or 31016 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1224211040 is about 34988.7273275265. The cubic root of 1224211040 is about 1069.7577231180.

Adding to 1224211040 its reverse (401124221), we get a palindrome (1625335261).

The spelling of 1224211040 in words is "one billion, two hundred twenty-four million, two hundred eleven thousand, forty".