1212303121120 has 192 divisors, whose sum is σ = 3606983170560. Its totient is φ = 374751111168.

The previous prime is 1212303121097. The next prime is 1212303121123. The reversal of 1212303121120 is 211213032121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212303121123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342090 + ... + 1594249.

It is an arithmetic number, because the mean of its divisors is an integer number (18786370680).

Almost surely, 2^{1212303121120} is an apocalyptic number.

1212303121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212303121120 is an abundant number, since it is smaller than the sum of its proper divisors (2394680049440).

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

1212303121120 is a wasteful number, since it uses less digits than its factorization.

1212303121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936417 (or 1936409 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1212303121120 its reverse (211213032121), we get a palindrome (1423516153241).

The spelling of 1212303121120 in words is "one trillion, two hundred twelve billion, three hundred three million, one hundred twenty-one thousand, one hundred twenty".