2143211224 has 64 divisors (see below), whose sum is σ = 5073638400. Its totient is φ = 824428800.

The previous prime is 2143211219. The next prime is 2143211227. The reversal of 2143211224 is 4221123412.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2143211195 and 2143211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143211227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26644 + ... + 70684.

It is an arithmetic number, because the mean of its divisors is an integer number (79275600).

Almost surely, 2^2143211224 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 2143211224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2536819200).

2143211224 is an abundant number, since it is smaller than the sum of its proper divisors (2930427176).

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

2143211224 is a wasteful number, since it uses less digits than its factorization.

2143211224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44144 (or 44140 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 2143211224 is about 46294.8293441071. The cubic root of 2143211224 is about 1289.3029954597.

Adding to 2143211224 its reverse (4221123412), we get a palindrome (6364334636).

The spelling of 2143211224 in words is "two billion, one hundred forty-three million, two hundred eleven thousand, two hundred twenty-four".