3212223520 has 96 divisors (see below), whose sum is σ = 8293150656. Its totient is φ = 1166054400.

The previous prime is 3212223473. The next prime is 3212223529. The reversal of 3212223520 is 253222123.

3212223520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 3212223491 and 3212223500.

It is not an unprimeable number, because it can be changed into a prime (3212223529) 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, 1331115 + ... + 1333525.

It is an arithmetic number, because the mean of its divisors is an integer number (86386986).

Almost surely, 2^3212223520 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 3212223520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4146575328).

3212223520 is an abundant number, since it is smaller than the sum of its proper divisors (5080927136).

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

3212223520 is a wasteful number, since it uses less digits than its factorization.

3212223520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194 (or 3186 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 3212223520 is about 56676.4811892905. The cubic root of 3212223520 is about 1475.4865417809.

Adding to 3212223520 its reverse (253222123), we get a palindrome (3465445643).

The spelling of 3212223520 in words is "three billion, two hundred twelve million, two hundred twenty-three thousand, five hundred twenty".