1224211143240 has 192 divisors, whose sum is σ = 4146908912640. Its totient is φ = 312857925120.

The previous prime is 1224211143223. The next prime is 1224211143263. The reversal of 1224211143240 is 423411124221.

1224211143240 is a `hidden beast` number, since 1 + 224 + 2 + 1 + 1 + 1 + 432 + 4 + 0 = 666.

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 47 ways as a sum of consecutive naturals, for example, 616974 + ... + 1681986.

It is an arithmetic number, because the mean of its divisors is an integer number (21598483920).

Almost surely, 2^{1224211143240} is an apocalyptic number.

1224211143240 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 1224211143240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2073454456320).

1224211143240 is an abundant number, since it is smaller than the sum of its proper divisors (2922697769400).

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

1224211143240 is a wasteful number, since it uses less digits than its factorization.

1224211143240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065164 (or 1065157 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1224211143240 its reverse (423411124221), we get a palindrome (1647622267461).

The spelling of 1224211143240 in words is "one trillion, two hundred twenty-four billion, two hundred eleven million, one hundred forty-three thousand, two hundred forty".