1212412230432 has 288 divisors, whose sum is σ = 3945473990640. Its totient is φ = 349851156480.

The previous prime is 1212412230427. The next prime is 1212412230467. The reversal of 1212412230432 is 2340322142121.

1212412230432 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 4 + 1 + 223 + 0 + 432 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 948590289936 + 263821940496 = 973956^2 + 513636^2 .

It is a tau number, because it is divible by the number of its divisors (288).

It is a junction number, because it is equal to n+sod(n) for n = 1212412230396 and 1212412230405.

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, 17851194 + ... + 17918982.

Almost surely, 2^{1212412230432} is an apocalyptic number.

1212412230432 is a gapful number since it is divisible by the number (12) 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 1212412230432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1972736995320).

1212412230432 is an abundant number, since it is smaller than the sum of its proper divisors (2733061760208).

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

1212412230432 is a wasteful number, since it uses less digits than its factorization.

1212412230432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68116 (or 68105 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1212412230432 its reverse (2340322142121), we get a palindrome (3552734372553).

The spelling of 1212412230432 in words is "one trillion, two hundred twelve billion, four hundred twelve million, two hundred thirty thousand, four hundred thirty-two".