2220222220 has 24 divisors (see below), whose sum is σ = 4676566608. Its totient is φ = 885403200.

The previous prime is 2220222211. The next prime is 2220222247. The reversal of 2220222220 is 222220222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2220222194 and 2220222203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161071 + ... + 174310.

It is an arithmetic number, because the mean of its divisors is an integer number (194856942).

Almost surely, 2^2220222220 is an apocalyptic number.

2220222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220222220 is an abundant number, since it is smaller than the sum of its proper divisors (2456344388).

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

2220222220 is a wasteful number, since it uses less digits than its factorization.

2220222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335721 (or 335719 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2220222220 is about 47119.2340769669. The cubic root of 2220222220 is about 1304.5642756855.

Adding to 2220222220 its reverse (222220222), we get a palindrome (2442442442).

The spelling of 2220222220 in words is "two billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty".