1310121112212 has 192 divisors, whose sum is σ = 3903146956800. Its totient is φ = 375847776000.

The previous prime is 1310121112199. The next prime is 1310121112259. The reversal of 1310121112212 is 2122111210131.

It is a happy number.

1310121112212 is a `hidden beast` number, since 1 + 310 + 121 + 11 + 221 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 33409537 + ... + 33448727.

It is an arithmetic number, because the mean of its divisors is an integer number (20328890400).

Almost surely, 2^{1310121112212} is an apocalyptic number.

1310121112212 is a gapful number since it is divisible by the number (12) 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 1310121112212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1951573478400).

1310121112212 is an abundant number, since it is smaller than the sum of its proper divisors (2593025844588).

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

1310121112212 is a wasteful number, since it uses less digits than its factorization.

1310121112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40715 (or 40707 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1310121112212 its reverse (2122111210131), we get a palindrome (3432232322343).

The spelling of 1310121112212 in words is "one trillion, three hundred ten billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twelve".