1212300240000 has 160 divisors (see below), whose sum is σ = 4023928368240. Its totient is φ = 323280000000.

The previous prime is 1212300239999. The next prime is 1212300240007. The reversal of 1212300240000 is 420032121.

It is a tau number, because it is divible by the number of its divisors (160).

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

It is not an unprimeable number, because it can be changed into a prime (1212300240007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2285626 + ... + 2765625.

Almost surely, 2^{1212300240000} is an apocalyptic number.

1212300240000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212300240000 is an abundant number, since it is smaller than the sum of its proper divisors (2811628128240).

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

1212300240000 is an frugal number, since it uses more digits than its factorization.

1212300240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051288 (or 5051261 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1212300240000 its reverse (420032121), we get a palindrome (1212720272121).

The spelling of 1212300240000 in words is "one trillion, two hundred twelve billion, three hundred million, two hundred forty thousand".