2143216123412 has 96 divisors (see below), whose sum is σ = 4631257607424. Its totient is φ = 845095680000.

The previous prime is 2143216123351. The next prime is 2143216123423.

2143216123412 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2143216123412² (a number of 25 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216459662 + ... + 216469562.

It is an arithmetic number, because the mean of its divisors is an integer number (48242266744).

Almost surely, 2^{2143216123412} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143216123412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2315628803712).

2143216123412 is an abundant number, since it is smaller than the sum of its proper divisors (2488041484012).

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

2143216123412 is a wasteful number, since it uses less digits than its factorization.

2143216123412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11809 (or 11807 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The spelling of 2143216123412 in words is "two trillion, one hundred forty-three billion, two hundred sixteen million, one hundred twenty-three thousand, four hundred twelve".