1212004342120 has 64 divisors (see below), whose sum is σ = 3203759744640. Its totient is φ = 406826630400.

The previous prime is 1212004342097. The next prime is 1212004342169. The reversal of 1212004342120 is 212434002121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1212004342091 and 1212004342100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105938716 + ... + 105950155.

It is an arithmetic number, because the mean of its divisors is an integer number (50058746010).

Almost surely, 2^{1212004342120} is an apocalyptic number.

1212004342120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212004342120 is an abundant number, since it is smaller than the sum of its proper divisors (1991755402520).

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

1212004342120 is a wasteful number, since it uses less digits than its factorization.

1212004342120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211888906 (or 211888902 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1212004342120 its reverse (212434002121), we get a palindrome (1424438344241).

The spelling of 1212004342120 in words is "one trillion, two hundred twelve billion, four million, three hundred forty-two thousand, one hundred twenty".