3222220520 has 16 divisors (see below), whose sum is σ = 7249996260. Its totient is φ = 1288888192.

The previous prime is 3222220471. The next prime is 3222220543. The reversal of 3222220520 is 250222223.

It can be written as a sum of positive squares in 2 ways, for example, as 3221470564 + 749956 = 56758^2 + 866^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3222220492 and 3222220501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40277717 + ... + 40277796.

Almost surely, 2^3222220520 is an apocalyptic number.

It is an amenable number.

3222220520 is an abundant number, since it is smaller than the sum of its proper divisors (4027775740).

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

3222220520 is a wasteful number, since it uses less digits than its factorization.

3222220520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80555524 (or 80555520 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 3222220520 is about 56764.6062260631. The cubic root of 3222220520 is about 1477.0156138072.

Adding to 3222220520 its reverse (250222223), we get a palindrome (3472442743).

The spelling of 3222220520 in words is "three billion, two hundred twenty-two million, two hundred twenty thousand, five hundred twenty".