1212223442124 has 192 divisors, whose sum is σ = 3137966899200. Its totient is φ = 362730700800.

The previous prime is 1212223442113. The next prime is 1212223442161. The reversal of 1212223442124 is 4212443222121.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1212223442091 and 1212223442100.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 107166429 + ... + 107177739.

It is an arithmetic number, because the mean of its divisors is an integer number (16343577600).

Almost surely, 2^{1212223442124} 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 1212223442124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568983449600).

1212223442124 is an abundant number, since it is smaller than the sum of its proper divisors (1925743457076).

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

1212223442124 is a wasteful number, since it uses less digits than its factorization.

1212223442124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11684 (or 11682 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

Adding to 1212223442124 its reverse (4212443222121), we get a palindrome (5424666664245).

The spelling of 1212223442124 in words is "one trillion, two hundred twelve billion, two hundred twenty-three million, four hundred forty-two thousand, one hundred twenty-four".