2220120220 has 12 divisors (see below), whose sum is σ = 4662252504. Its totient is φ = 888048080.

The previous prime is 2220120191. The next prime is 2220120239. The reversal of 2220120220 is 220210222.

It is a self number, because there is not a number n which added to its sum of digits gives 2220120220.

It is a congruent number.

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, 55502986 + ... + 55503025.

It is an arithmetic number, because the mean of its divisors is an integer number (388521042).

Almost surely, 2^2220120220 is an apocalyptic number.

2220120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220120220 is an abundant number, since it is smaller than the sum of its proper divisors (2442132284).

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

2220120220 is a wasteful number, since it uses less digits than its factorization.

2220120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111006020 (or 111006018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2220120220 is about 47118.1517039877. The cubic root of 2220120220 is about 1304.5442975661.

Adding to 2220120220 its reverse (220210222), we get a palindrome (2440330442).

The spelling of 2220120220 in words is "two billion, two hundred twenty million, one hundred twenty thousand, two hundred twenty".