1224222202440 has 192 divisors, whose sum is σ = 4163032972800. Its totient is φ = 311413741056.

The previous prime is 1224222202433. The next prime is 1224222202451. The reversal of 1224222202440 is 442022224221.

1224222202440 is a `hidden beast` number, since 12 + 2 + 4 + 2 + 2 + 2 + 202 + 440 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2837326 + ... + 3240194.

It is an arithmetic number, because the mean of its divisors is an integer number (21682463400).

Almost surely, 2^{1224222202440} is an apocalyptic number.

1224222202440 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 1224222202440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2081516486400).

1224222202440 is an abundant number, since it is smaller than the sum of its proper divisors (2938810770360).

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

1224222202440 is a wasteful number, since it uses less digits than its factorization.

1224222202440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403276 (or 403269 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 1224222202440 its reverse (442022224221), we get a palindrome (1666244426661).

The spelling of 1224222202440 in words is "one trillion, two hundred twenty-four billion, two hundred twenty-two million, two hundred two thousand, four hundred forty".