1224223402112 has 64 divisors (see below), whose sum is σ = 2509300655640. Its totient is φ = 594497617920.

The previous prime is 1224223402067. The next prime is 1224223402133. The reversal of 1224223402112 is 2112043224221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1217350328896 + 6873073216 = 1103336^2 + 82904^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405912 + ... + 2869992.

Almost surely, 2^{1224223402112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224223402112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254650327820).

1224223402112 is an abundant number, since it is smaller than the sum of its proper divisors (1285077253528).

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

1224223402112 is an equidigital number, since it uses as much as digits as its factorization.

1224223402112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464689 (or 464677 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1224223402112 its reverse (2112043224221), we get a palindrome (3336266626333).

The spelling of 1224223402112 in words is "one trillion, two hundred twenty-four billion, two hundred twenty-three million, four hundred two thousand, one hundred twelve".