3122220220 has 144 divisors (see below), whose sum is σ = 8142089760. Its totient is φ = 999806976.

The previous prime is 3122220203. The next prime is 3122220229. The reversal of 3122220220 is 220222213.

3122220220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3122220194 and 3122220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122220229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1358112 + ... + 1360408.

It is an arithmetic number, because the mean of its divisors is an integer number (56542290).

Almost surely, 2^3122220220 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 3122220220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4071044880).

3122220220 is an abundant number, since it is smaller than the sum of its proper divisors (5019869540).

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

3122220220 is a wasteful number, since it uses less digits than its factorization.

3122220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3122220220 is about 55876.8307977466. The cubic root of 3122220220 is about 1461.5752404510.

Adding to 3122220220 its reverse (220222213), we get a palindrome (3342442433).

The spelling of 3122220220 in words is "three billion, one hundred twenty-two million, two hundred twenty thousand, two hundred twenty".