1214144345172 has 96 divisors (see below), whose sum is σ = 3169349213184. Its totient is φ = 358579065600.

The previous prime is 1214144345143. The next prime is 1214144345201. The reversal of 1214144345172 is 2715434414121.

It is an interprime number because it is at equal distance from previous prime (1214144345143) and next prime (1214144345201).

It is a self number, because there is not a number n which added to its sum of digits gives 1214144345172.

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 31 ways as a sum of consecutive naturals, for example, 2359897 + ... + 2827967.

It is an arithmetic number, because the mean of its divisors is an integer number (33014054304).

Almost surely, 2^{1214144345172} is an apocalyptic number.

1214144345172 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 1214144345172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1584674606592).

1214144345172 is an abundant number, since it is smaller than the sum of its proper divisors (1955204868012).

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

1214144345172 is a wasteful number, since it uses less digits than its factorization.

1214144345172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468589 (or 468587 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

Adding to 1214144345172 its reverse (2715434414121), we get a palindrome (3929578759293).

The spelling of 1214144345172 in words is "one trillion, two hundred fourteen billion, one hundred forty-four million, three hundred forty-five thousand, one hundred seventy-two".