1212111313120 has 24 divisors (see below), whose sum is σ = 2863612977624. Its totient is φ = 484844525184.

The previous prime is 1212111313081. The next prime is 1212111313151. The reversal of 1212111313120 is 213131112121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3787847694 + ... + 3787848013.

It is an arithmetic number, because the mean of its divisors is an integer number (119317207401).

Almost surely, 2^{1212111313120} is an apocalyptic number.

1212111313120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212111313120 is an abundant number, since it is smaller than the sum of its proper divisors (1651501664504).

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

1212111313120 is an equidigital number, since it uses as much as digits as its factorization.

1212111313120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7575695722 (or 7575695714 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1212111313120 its reverse (213131112121), we get a palindrome (1425242425241).

The spelling of 1212111313120 in words is "one trillion, two hundred twelve billion, one hundred eleven million, three hundred thirteen thousand, one hundred twenty".