1212144000000 has 308 divisors, whose sum is σ = 4038615336312. Its totient is φ = 323225600000.

The previous prime is 1212143999999. The next prime is 1212144000071. The reversal of 1212144000000 is 4412121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 47987374 + ... + 48012626.

Almost surely, 2^{1212144000000} is an apocalyptic number.

1212144000000 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 1212144000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2019307668156).

1212144000000 is an abundant number, since it is smaller than the sum of its proper divisors (2826471336312).

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

1212144000000 is an frugal number, since it uses more digits than its factorization.

1212144000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25306 (or 25263 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1212144000000 its reverse (4412121), we get a palindrome (1212148412121).

It can be divided in two parts, 121214 and 4000000, that added together give a palindrome (4121214).

The spelling of 1212144000000 in words is "one trillion, two hundred twelve billion, one hundred forty-four million", and thus it is an aban number.