1212384338880 has 1344 divisors, whose sum is σ = 4834875515904. Its totient is φ = 255143116800.

The previous prime is 1212384338839. The next prime is 1212384338899. The reversal of 1212384338880 is 888334832121.

It is a super-2 number, since 2×1212384338880² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2327033020 + ... + 2327033540.

It is an arithmetic number, because the mean of its divisors is an integer number (3597377616).

Almost surely, 2^{1212384338880} is an apocalyptic number.

1212384338880 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 1212384338880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2417437757952).

1212384338880 is an abundant number, since it is smaller than the sum of its proper divisors (3622491177024).

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

1212384338880 is a wasteful number, since it uses less digits than its factorization.

1212384338880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 51.

The spelling of 1212384338880 in words is "one trillion, two hundred twelve billion, three hundred eighty-four million, three hundred thirty-eight thousand, eight hundred eighty".