1222212330240 has 144 divisors (see below), whose sum is σ = 4258299015936. Its totient is φ = 296293888000.

The previous prime is 1222212330211. The next prime is 1222212330347. The reversal of 1222212330240 is 420332122221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1222212330240.

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, 14425236 + ... + 14509715.

It is an arithmetic number, because the mean of its divisors is an integer number (29571520944).

Almost surely, 2^{1222212330240} is an apocalyptic number.

1222212330240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222212330240 is an abundant number, since it is smaller than the sum of its proper divisors (3036086685696).

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

1222212330240 is a wasteful number, since it uses less digits than its factorization.

1222212330240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28934986 (or 28934972 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1222212330240 its reverse (420332122221), we get a palindrome (1642544452461).

The spelling of 1222212330240 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, three hundred thirty thousand, two hundred forty".